diff --git a/Makefile b/Makefile
index fee84602e999..d71c40a34b30 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 14
-SUBLEVEL = 49
+SUBLEVEL = 50
 EXTRAVERSION =
 NAME = Remembering Coco
 
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 1bfeec2c0558..2a58af7a2e3a 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -63,7 +63,7 @@ struct callee_regs {
        long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13;
 };
 
-#define instruction_pointer(regs)      ((regs)->ret)
+#define instruction_pointer(regs)      (unsigned long)((regs)->ret)
 #define profile_pc(regs)               instruction_pointer(regs)
 
 /* return 1 if user mode or 0 if kernel mode */
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
index 23b1a97fae7a..52c179bec0cc 100644
--- a/arch/avr32/mach-at32ap/clock.c
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -80,6 +80,9 @@ int clk_enable(struct clk *clk)
 {
        unsigned long flags;
 
+       if (!clk)
+               return 0;
+
        spin_lock_irqsave(&clk_lock, flags);
        __clk_enable(clk);
        spin_unlock_irqrestore(&clk_lock, flags);
@@ -106,6 +109,9 @@ void clk_disable(struct clk *clk)
 {
        unsigned long flags;
 
+       if (IS_ERR_OR_NULL(clk))
+               return;
+
        spin_lock_irqsave(&clk_lock, flags);
        __clk_disable(clk);
        spin_unlock_irqrestore(&clk_lock, flags);
@@ -117,6 +123,9 @@ unsigned long clk_get_rate(struct clk *clk)
        unsigned long flags;
        unsigned long rate;
 
+       if (!clk)
+               return 0;
+
        spin_lock_irqsave(&clk_lock, flags);
        rate = clk->get_rate(clk);
        spin_unlock_irqrestore(&clk_lock, flags);
@@ -129,6 +138,9 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
 {
        unsigned long flags, actual_rate;
 
+       if (!clk)
+               return 0;
+
        if (!clk->set_rate)
                return -ENOSYS;
 
@@ -145,6 +157,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
        unsigned long flags;
        long ret;
 
+       if (!clk)
+               return 0;
+
        if (!clk->set_rate)
                return -ENOSYS;
 
@@ -161,6 +176,9 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
        unsigned long flags;
        int ret;
 
+       if (!clk)
+               return 0;
+
        if (!clk->set_parent)
                return -ENOSYS;
 
@@ -174,7 +192,7 @@ EXPORT_SYMBOL(clk_set_parent);
 
 struct clk *clk_get_parent(struct clk *clk)
 {
-       return clk->parent;
+       return !clk ? NULL : clk->parent;
 }
 EXPORT_SYMBOL(clk_get_parent);
 
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index 29bd7bec4176..1ecd47b5e250 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -276,6 +276,8 @@ ENTRY(_sclp_print_early)
        jno     .Lesa2
        ahi     %r15,-80
        stmh    %r6,%r15,96(%r15)               # store upper register halves
+       basr    %r13,0
+       lmh     %r0,%r15,.Lzeroes-.(%r13)       # clear upper register halves
 .Lesa2:
 #endif
        lr      %r10,%r2                        # save string pointer
@@ -299,6 +301,8 @@ ENTRY(_sclp_print_early)
 #endif
        lm      %r6,%r15,120(%r15)              # restore registers
        br      %r14
+.Lzeroes:
+       .fill   64,4,0
 
 .LwritedataS4:
        .long   0x00760005                      # SCLP command for write data
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 74c91729a62a..bdb3ecf8e168 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -1146,7 +1146,7 @@ static void __init load_hv_initrd(void)
 
 void __init free_initrd_mem(unsigned long begin, unsigned long end)
 {
-       free_bootmem(__pa(begin), end - begin);
+       free_bootmem_late(__pa(begin), end - begin);
 }
 
 static int __init setup_initrd(char *str)
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 78cbb2db5a85..ec5a3c7fac7a 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -560,6 +560,10 @@ static efi_status_t setup_e820(struct boot_params *params,
                unsigned int e820_type = 0;
                unsigned long m = efi->efi_memmap;
 
+#ifdef CONFIG_X86_64
+               m |= (u64)efi->efi_memmap_hi << 32;
+#endif
+
                d = (efi_memory_desc_t *)(m + (i * efi->efi_memdesc_size));
                switch (d->type) {
                case EFI_RESERVED_TYPE:
diff --git a/arch/x86/boot/compressed/head_32.S 
b/arch/x86/boot/compressed/head_32.S
index c5b56ed10aff..a814c80eb580 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -54,7 +54,7 @@ ENTRY(efi_pe_entry)
        call    reloc
 reloc:
        popl    %ecx
-       subl    reloc, %ecx
+       subl    $reloc, %ecx
        movl    %ecx, BP_code32_start(%eax)
 
        sub     $0x4, %esp
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index d8f80e733cf8..a7175855b6ed 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -703,8 +703,12 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct 
blkcg_policy *pol,
                return -EINVAL;
 
        disk = get_gendisk(MKDEV(major, minor), &part);
-       if (!disk || part)
+       if (!disk)
                return -EINVAL;
+       if (part) {
+               put_disk(disk);
+               return -EINVAL;
+       }
 
        rcu_read_lock();
        spin_lock_irq(disk->queue->queue_lock);
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index 7ccc084bf1df..85aa76116a30 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -460,6 +460,13 @@ static void sata_pmp_quirks(struct ata_port *ap)
                                       ATA_LFLAG_NO_SRST |
                                       ATA_LFLAG_ASSUME_ATA;
                }
+       } else if (vendor == 0x11ab && devid == 0x4140) {
+               /* Marvell 4140 quirks */
+               ata_for_each_link(link, ap, EDGE) {
+                       /* port 4 is for SEMB device and it doesn't like SRST */
+                       if (link->pmp == 4)
+                               link->flags |= ATA_LFLAG_DISABLED;
+               }
        }
 }
 
diff --git a/drivers/input/touchscreen/usbtouchscreen.c 
b/drivers/input/touchscreen/usbtouchscreen.c
index a0966331a89b..c6f7e918b2b1 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -625,6 +625,9 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
                goto err_out;
        }
 
+       /* TSC-25 data sheet specifies a delay after the RESET command */
+       msleep(150);
+
        /* set coordinate output rate */
        buf[0] = buf[1] = 0xFF;
        ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index b96ee9d78aa3..9be97e0bd149 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -336,7 +336,7 @@ static void raid1_end_read_request(struct bio *bio, int 
error)
                spin_lock_irqsave(&conf->device_lock, flags);
                if (r1_bio->mddev->degraded == conf->raid_disks ||
                    (r1_bio->mddev->degraded == conf->raid_disks-1 &&
-                    !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags)))
+                    test_bit(In_sync, &conf->mirrors[mirror].rdev->flags)))
                        uptodate = 1;
                spin_unlock_irqrestore(&conf->device_lock, flags);
        }
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index a7d9f95a7b03..7fd86becfd1a 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -47,6 +47,6 @@
 #define ESDHC_DMA_SYSCTL       0x40c
 #define ESDHC_DMA_SNOOP                0x00000040
 
-#define ESDHC_HOST_CONTROL_RES 0x05
+#define ESDHC_HOST_CONTROL_RES 0x01
 
 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index 561c6b4907a1..b80766699249 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -257,6 +257,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
                        goto err_of_parse;
                sdhci_get_of_property(pdev);
                pdata = pxav3_get_mmc_pdata(dev);
+               pdev->dev.platform_data = pdata;
        } else if (pdata) {
                /* on-chip device */
                if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index a1d6986261a3..f3109828c6df 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -1262,9 +1262,9 @@ static int st_open(struct inode *inode, struct file *filp)
        spin_lock(&st_use_lock);
        STp->in_use = 0;
        spin_unlock(&st_use_lock);
-       scsi_tape_put(STp);
        if (resumed)
                scsi_autopm_put_device(STp->device);
+       scsi_tape_put(STp);
        return retval;
 
 }
diff --git a/drivers/target/iscsi/iscsi_target.c 
b/drivers/target/iscsi/iscsi_target.c
index c8d7b3009c7e..55ec9b4b97cc 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4476,7 +4476,18 @@ static void iscsit_logout_post_handler_closesession(
        struct iscsi_conn *conn)
 {
        struct iscsi_session *sess = conn->sess;
-       int sleep = cmpxchg(&conn->tx_thread_active, true, false);
+       int sleep = 1;
+       /*
+        * Traditional iscsi/tcp will invoke this logic from TX thread
+        * context during session logout, so clear tx_thread_active and
+        * sleep if iscsit_close_connection() has not already occured.
+        *
+        * Since iser-target invokes this logic from it's own workqueue,
+        * always sleep waiting for RX/TX thread shutdown to complete
+        * within iscsit_close_connection().
+        */
+       if (conn->conn_transport->transport_type == ISCSI_TCP)
+               sleep = cmpxchg(&conn->tx_thread_active, true, false);
 
        atomic_set(&conn->conn_logout_remove, 0);
        complete(&conn->conn_logout_comp);
@@ -4490,7 +4501,10 @@ static void iscsit_logout_post_handler_closesession(
 static void iscsit_logout_post_handler_samecid(
        struct iscsi_conn *conn)
 {
-       int sleep = cmpxchg(&conn->tx_thread_active, true, false);
+       int sleep = 1;
+
+       if (conn->conn_transport->transport_type == ISCSI_TCP)
+               sleep = cmpxchg(&conn->tx_thread_active, true, false);
 
        atomic_set(&conn->conn_logout_remove, 0);
        complete(&conn->conn_logout_comp);
@@ -4709,6 +4723,7 @@ int iscsit_release_sessions_for_tpg(struct 
iscsi_portal_group *tpg, int force)
        struct iscsi_session *sess;
        struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
        struct se_session *se_sess, *se_sess_tmp;
+       LIST_HEAD(free_list);
        int session_count = 0;
 
        spin_lock_bh(&se_tpg->session_lock);
@@ -4730,14 +4745,17 @@ int iscsit_release_sessions_for_tpg(struct 
iscsi_portal_group *tpg, int force)
                }
                atomic_set(&sess->session_reinstatement, 1);
                spin_unlock(&sess->conn_lock);
-               spin_unlock_bh(&se_tpg->session_lock);
 
-               iscsit_free_session(sess);
-               spin_lock_bh(&se_tpg->session_lock);
+               list_move_tail(&se_sess->sess_list, &free_list);
+       }
+       spin_unlock_bh(&se_tpg->session_lock);
 
+       list_for_each_entry_safe(se_sess, se_sess_tmp, &free_list, sess_list) {
+               sess = (struct iscsi_session *)se_sess->fabric_sess_ptr;
+
+               iscsit_free_session(sess);
                session_count++;
        }
-       spin_unlock_bh(&se_tpg->session_lock);
 
        pr_debug("Released %d iSCSI Session(s) from Target Portal"
                        " Group: %hu\n", session_count, tpg->tpgt);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index b9e16abb0fab..5c957658a04a 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -480,10 +480,13 @@ static void xhci_hub_report_usb3_link_state(struct 
xhci_hcd *xhci,
        u32 pls = status_reg & PORT_PLS_MASK;
 
        /* resume state is a xHCI internal state.
-        * Do not report it to usb core.
+        * Do not report it to usb core, instead, pretend to be U3,
+        * thus usb core knows it's not ready for transfer
         */
-       if (pls == XDEV_RESUME)
+       if (pls == XDEV_RESUME) {
+               *status |= USB_SS_PORT_LS_U3;
                return;
+       }
 
        /* When the CAS bit is set then warm reset
         * should be performed on port
@@ -584,7 +587,14 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
                status |= USB_PORT_STAT_C_RESET << 16;
        /* USB3.0 only */
        if (hcd->speed == HCD_USB3) {
-               if ((raw_port_status & PORT_PLC))
+               /* Port link change with port in resume state should not be
+                * reported to usbcore, as this is an internal state to be
+                * handled by xhci driver. Reporting PLC to usbcore may
+                * cause usbcore clearing PLC first and port change event
+                * irq won't be generated.
+                */
+               if ((raw_port_status & PORT_PLC) &&
+                       (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME)
                        status |= USB_PORT_STAT_C_LINK_STATE << 16;
                if ((raw_port_status & PORT_WRC))
                        status |= USB_PORT_STAT_C_BH_RESET << 16;
@@ -1114,10 +1124,10 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
        spin_lock_irqsave(&xhci->lock, flags);
 
        if (hcd->self.root_hub->do_remote_wakeup) {
-               if (bus_state->resuming_ports) {
+               if (bus_state->resuming_ports ||        /* USB2 */
+                   bus_state->port_remote_wakeup) {    /* USB3 */
                        spin_unlock_irqrestore(&xhci->lock, flags);
-                       xhci_dbg(xhci, "suspend failed because "
-                                               "a port is resuming\n");
+                       xhci_dbg(xhci, "suspend failed because a port is 
resuming\n");
                        return -EBUSY;
                }
        }
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f615712e8251..bcc43a21fd12 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1740,6 +1740,9 @@ static void handle_port_status(struct xhci_hcd *xhci,
                usb_hcd_resume_root_hub(hcd);
        }
 
+       if (hcd->speed == HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE)
+               bus_state->port_remote_wakeup &= ~(1 << faked_port_index);
+
        if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) {
                xhci_dbg(xhci, "port resume event for port %d\n", port_id);
 
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 16f4f8dc1ae9..fc61e663b00a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3424,6 +3424,9 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, 
struct usb_device *udev)
                        return -EINVAL;
        }
 
+       if (virt_dev->tt_info)
+               old_active_eps = virt_dev->tt_info->active_eps;
+
        if (virt_dev->udev != udev) {
                /* If the virt_dev and the udev does not match, this virt_dev
                 * may belong to another udev.
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 70facb725105..c167485e0653 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -285,6 +285,7 @@ struct xhci_op_regs {
 #define XDEV_U0                (0x0 << 5)
 #define XDEV_U2                (0x2 << 5)
 #define XDEV_U3                (0x3 << 5)
+#define XDEV_INACTIVE  (0x6 << 5)
 #define XDEV_RESUME    (0xf << 5)
 /* true: port has power (see HCC_PPC) */
 #define PORT_POWER     (1 << 9)
diff --git a/drivers/usb/storage/unusual_devs.h 
b/drivers/usb/storage/unusual_devs.h
index 821e1e2f70f6..da380a99c6b8 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2032,6 +2032,18 @@ UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0200,
                USB_SC_DEVICE, USB_PR_DEVICE, NULL,
                US_FL_NO_READ_DISC_INFO ),
 
+/* Reported by Oliver Neukum <[email protected]>
+ * This device morphes spontaneously into another device if the access
+ * pattern of Windows isn't followed. Thus writable media would be dirty
+ * if the initial instance is used. So the device is limited to its
+ * virtual CD.
+ * And yes, the concept that BCD goes up to 9 is not heeded */
+UNUSUAL_DEV( 0x19d2, 0x1225, 0x0000, 0xffff,
+               "ZTE,Incorporated",
+               "ZTE WCDMA Technologies MSM",
+               USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+               US_FL_SINGLE_LUN ),
+
 /* Reported by Sven Geggus <[email protected]>
  * This encrypted pen drive returns bogus data for the initial READ(10).
  */
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 78987e481bc6..85095d7aa51c 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -876,6 +876,7 @@ long vhost_dev_ioctl(struct vhost_dev *d, unsigned int 
ioctl, void __user *argp)
                }
                if (eventfp != d->log_file) {
                        filep = d->log_file;
+                       d->log_file = eventfp;
                        ctx = d->log_ctx;
                        d->log_ctx = eventfp ?
                                eventfd_ctx_fileget(eventfp) : NULL;
diff --git a/fs/dcache.c b/fs/dcache.c
index aa24f7de1b92..3d2f27b4cd38 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -587,6 +587,9 @@ repeat:
        if (unlikely(d_unhashed(dentry)))
                goto kill_it;
 
+       if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+               goto kill_it;
+
        if (unlikely(dentry->d_flags & DCACHE_OP_DELETE)) {
                if (dentry->d_op->d_delete(dentry))
                        goto kill_it;
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index 9065107f083e..7a5237a1bce5 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -75,13 +75,21 @@ void check_irq_resend(struct irq_desc *desc, unsigned int 
irq)
                    !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) {
 #ifdef CONFIG_HARDIRQS_SW_RESEND
                        /*
-                        * If the interrupt has a parent irq and runs
-                        * in the thread context of the parent irq,
-                        * retrigger the parent.
+                        * If the interrupt is running in the thread
+                        * context of the parent irq we need to be
+                        * careful, because we cannot trigger it
+                        * directly.
                         */
-                       if (desc->parent_irq &&
-                           irq_settings_is_nested_thread(desc))
+                       if (irq_settings_is_nested_thread(desc)) {
+                               /*
+                                * If the parent_irq is valid, we
+                                * retrigger the parent, otherwise we
+                                * do nothing.
+                                */
+                               if (!desc->parent_irq)
+                                       return;
                                irq = desc->parent_irq;
+                       }
                        /* Set it pending and activate the softirq: */
                        set_bit(irq, irqs_resend);
                        tasklet_schedule(&resend_tasklet);
diff --git a/mm/memory.c b/mm/memory.c
index 749e1c68d490..e9ddc7aceefa 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3234,6 +3234,10 @@ static int do_anonymous_page(struct mm_struct *mm, 
struct vm_area_struct *vma,
 
        pte_unmap(page_table);
 
+       /* File mapping without ->vm_ops ? */
+       if (vma->vm_flags & VM_SHARED)
+               return VM_FAULT_SIGBUS;
+
        /* Check if we need to add a guard page to the stack */
        if (check_stack_guard_page(vma, address) < 0)
                return VM_FAULT_SIGSEGV;
@@ -3502,6 +3506,9 @@ static int do_linear_fault(struct mm_struct *mm, struct 
vm_area_struct *vma,
                        - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
 
        pte_unmap(page_table);
+       /* The VMA was not fully populated on mmap() or missing VM_DONTEXPAND */
+       if (!vma->vm_ops->fault)
+               return VM_FAULT_SIGBUS;
        return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte);
 }
 
@@ -3650,11 +3657,9 @@ static int handle_pte_fault(struct mm_struct *mm,
        entry = ACCESS_ONCE(*pte);
        if (!pte_present(entry)) {
                if (pte_none(entry)) {
-                       if (vma->vm_ops) {
-                               if (likely(vma->vm_ops->fault))
-                                       return do_linear_fault(mm, vma, address,
+                       if (vma->vm_ops)
+                               return do_linear_fault(mm, vma, address,
                                                pte, pmd, flags, entry);
-                       }
                        return do_anonymous_page(mm, vma, address,
                                                 pte, pmd, flags);
                }
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 653ce5d9e6e0..5d8bc1f6b5a1 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -712,6 +712,7 @@ void ieee80211_debugfs_remove_netdev(struct 
ieee80211_sub_if_data *sdata)
 
        debugfs_remove_recursive(sdata->vif.debugfs_dir);
        sdata->vif.debugfs_dir = NULL;
+       sdata->debugfs.subdir_stations = NULL;
 }
 
 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index e8fdb172adbb..a985158d95d5 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -759,8 +759,10 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long 
nents,
        }
 
        ibmr = rds_ib_alloc_fmr(rds_ibdev);
-       if (IS_ERR(ibmr))
+       if (IS_ERR(ibmr)) {
+               rds_ib_dev_put(rds_ibdev);
                return ibmr;
+       }
 
        ret = rds_ib_map_fmr(rds_ibdev, ibmr, sg, nents);
        if (ret == 0)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2f503c0836a9..907371d87312 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2282,7 +2282,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
        SND_PCI_QUIRK(0x106b, 0x4300, "iMac 9,1", ALC889_FIXUP_IMAC91_VREF),
        SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", 
ALC889_FIXUP_IMAC91_VREF),
        SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", 
ALC889_FIXUP_IMAC91_VREF),
-       SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_IMAC91_VREF),
+       SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_MBA11_VREF),
 
        SND_PCI_QUIRK(0x1071, 0x8258, "Evesham Voyaeger", ALC882_FIXUP_EAPD),
        SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD),
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index b16be3944213..9a3e1076a5b1 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -336,6 +336,20 @@ static const struct usbmix_name_map scms_usb3318_map[] = {
        { 0 }
 };
 
+/* Bose companion 5, the dB conversion factor is 16 instead of 256 */
+static struct usbmix_dB_map bose_companion5_dB = {-5006, -6};
+static struct usbmix_name_map bose_companion5_map[] = {
+       { 3, NULL, .dB = &bose_companion5_dB },
+       { 0 }   /* terminator */
+};
+
+/* Dragonfly DAC 1.2, the dB conversion factor is 1 instead of 256 */
+static struct usbmix_dB_map dragonfly_1_2_dB = {0, 5000};
+static struct usbmix_name_map dragonfly_1_2_map[] = {
+       { 7, NULL, .dB = &dragonfly_1_2_dB },
+       { 0 }   /* terminator */
+};
+
 /*
  * Control map entries
  */
@@ -442,6 +456,16 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
                .id = USB_ID(0x25c4, 0x0003),
                .map = scms_usb3318_map,
        },
+       {
+               /* Bose Companion 5 */
+               .id = USB_ID(0x05a7, 0x1020),
+               .map = bose_companion5_map,
+       },
+       {
+               /* Dragonfly DAC 1.2 */
+               .id = USB_ID(0x21b4, 0x0081),
+               .map = dragonfly_1_2_map,
+       },
        { 0 } /* terminator */
 };
 
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 5293b5ac8b9d..7c24088bcaa4 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2516,6 +2516,74 @@ YAMAHA_DEVICE(0x7010, "UB99"),
        }
 },
 
+/* Steinberg devices */
+{
+       /* Steinberg MI2 */
+       USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x2040),
+       .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+               .ifnum = QUIRK_ANY_INTERFACE,
+               .type = QUIRK_COMPOSITE,
+               .data = & (const struct snd_usb_audio_quirk[]) {
+                       {
+                               .ifnum = 0,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 1,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 2,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 3,
+                               .type = QUIRK_MIDI_FIXED_ENDPOINT,
+                               .data = &(const struct 
snd_usb_midi_endpoint_info) {
+                                       .out_cables = 0x0001,
+                                       .in_cables  = 0x0001
+                               }
+                       },
+                       {
+                               .ifnum = -1
+                       }
+               }
+       }
+},
+{
+       /* Steinberg MI4 */
+       USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x4040),
+       .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+               .ifnum = QUIRK_ANY_INTERFACE,
+               .type = QUIRK_COMPOSITE,
+               .data = & (const struct snd_usb_audio_quirk[]) {
+                       {
+                               .ifnum = 0,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 1,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 2,
+                               .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                       },
+                       {
+                               .ifnum = 3,
+                               .type = QUIRK_MIDI_FIXED_ENDPOINT,
+                               .data = &(const struct 
snd_usb_midi_endpoint_info) {
+                                       .out_cables = 0x0001,
+                                       .in_cables  = 0x0001
+                               }
+                       },
+                       {
+                               .ifnum = -1
+                       }
+               }
+       }
+},
+
 /* TerraTec devices */
 {
        USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012),
--
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