In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Mauro Carvalho Chehab <mche...@kernel.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Alan Cox <a...@linux.intel.com>
Cc: Daeseok Youn <daeseok.y...@gmail.com>
Cc: Arnd Bergmann <a...@arndb.de>
Cc: linux-media@vger.kernel.org
Cc: de...@driverdev.osuosl.org
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
 drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c  | 13 ++++---------
 drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h  |  6 +-----
 .../media/atomisp/pci/atomisp2/atomisp_compat_css20.c     |  2 +-
 drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c | 15 +++++----------
 4 files changed, 11 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c 
b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
index b0c647f4d250..f3cf4ecba630 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
@@ -1661,20 +1661,15 @@ void atomisp_css_flush(struct atomisp_device *isp)
        dev_dbg(isp->dev, "atomisp css flush done\n");
 }
 
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr)
-#else
-void atomisp_wdt(unsigned long pipe_addr)
-#endif
+void atomisp_wdt(struct timer_list *t)
 {
 #ifndef ISP2401
-       struct atomisp_device *isp = (struct atomisp_device *)isp_addr;
+       struct atomisp_sub_device *asd = from_timer(asd, t, wdt);
 #else
-       struct atomisp_video_pipe *pipe =
-               (struct atomisp_video_pipe *)pipe_addr;
+       struct atomisp_video_pipe *pipe = from_timer(pipe, t, wdt);
        struct atomisp_sub_device *asd = pipe->asd;
-       struct atomisp_device *isp = asd->isp;
 #endif
+       struct atomisp_device *isp = asd->isp;
 
 #ifdef ISP2401
        atomic_inc(&pipe->wdt_count);
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h 
b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
index 31ba4e613d13..4bb83864da2e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h
@@ -85,11 +85,7 @@ static inline void __iomem 
*atomisp_get_io_virt_addr(unsigned int address)
 void atomisp_msi_irq_init(struct atomisp_device *isp, struct pci_dev *dev);
 void atomisp_msi_irq_uninit(struct atomisp_device *isp, struct pci_dev *dev);
 void atomisp_wdt_work(struct work_struct *work);
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr);
-#else
-void atomisp_wdt(unsigned long pipe_addr);
-#endif
+void atomisp_wdt(struct timer_list *t);
 void atomisp_setup_flash(struct atomisp_sub_device *asd);
 irqreturn_t atomisp_isr(int irq, void *dev);
 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr);
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c 
b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
index 5027fd20d966..b190f9958066 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
@@ -4526,7 +4526,7 @@ int atomisp_css_isr_thread(struct atomisp_device *isp,
                        for (i = 0; i < isp->num_of_streams; i++)
                                atomisp_wdt_stop(&isp->asd[i], 0);
 #ifndef ISP2401
-                       atomisp_wdt((unsigned long)isp);
+                       atomisp_wdt(&isp->asd[0].wdt);
 #else
                        queue_work(isp->wdt_work_queue, &isp->wdt_work);
 #endif
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c 
b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
index e85b3819bffa..20aff7faf44a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
@@ -1150,17 +1150,12 @@ static int init_atomisp_wdts(struct atomisp_device *isp)
                struct atomisp_sub_device *asd = &isp->asd[i];
                asd = &isp->asd[i];
 #ifndef ISP2401
-               setup_timer(&asd->wdt, atomisp_wdt, (unsigned long)isp);
+               timer_setup(&asd->wdt, atomisp_wdt, 0);
 #else
-               setup_timer(&asd->video_out_capture.wdt,
-                       atomisp_wdt, (unsigned long)&asd->video_out_capture);
-               setup_timer(&asd->video_out_preview.wdt,
-                       atomisp_wdt, (unsigned long)&asd->video_out_preview);
-               setup_timer(&asd->video_out_vf.wdt,
-                       atomisp_wdt, (unsigned long)&asd->video_out_vf);
-               setup_timer(&asd->video_out_video_capture.wdt,
-                       atomisp_wdt,
-                       (unsigned long)&asd->video_out_video_capture);
+               timer_setup(&asd->video_out_capture.wdt, atomisp_wdt, 0);
+               timer_setup(&asd->video_out_preview.wdt, atomisp_wdt, 0);
+               timer_setup(&asd->video_out_vf.wdt, atomisp_wdt, 0);
+               timer_setup(&asd->video_out_video_capture.wdt, atomisp_wdt, 0);
 #endif
        }
        return 0;
-- 
2.7.4


-- 
Kees Cook
Pixel Security

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