This wrapper returned the result of mutex_lock_interruptible(); however,
none of the callers checked the returned value.
As a result of a gcc upgrade to version 4.8.1, two false unitialized variable
warnings appeared. To silence the warnings, they are initialized to 0.
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
---
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c | 3 ++-
drivers/staging/rtl8188eu/hal/usb_ops_linux.c | 8 +++++---
drivers/staging/rtl8188eu/include/osdep_service.h | 9 ---------
drivers/staging/rtl8188eu/os_dep/os_intfs.c | 3 ++-
4 files changed, 9 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index c197b22..e95a1ba 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -4429,7 +4429,8 @@ s32 dump_mgntframe_and_wait_ack(struct adapter *padapter,
struct xmit_frame *pmg
if (padapter->bSurpriseRemoved || padapter->bDriverStopped)
return -1;
- _enter_critical_mutex(&pxmitpriv->ack_tx_mutex, NULL);
+ if (mutex_lock_interruptible(&pxmitpriv->ack_tx_mutex))
+ return -1;
pxmitpriv->ack_tx = true;
pmgntframe->ack_report = 1;
diff --git a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
index 1fa5370..d5f6a32 100644
--- a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
@@ -49,7 +49,9 @@ static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u8
request, u16 value, u
goto exit;
}
- _enter_critical_mutex(&dvobjpriv->usb_vendor_req_mutex, NULL);
+ if (mutex_lock_interruptible(&dvobjpriv->usb_vendor_req_mutex))
+ status = -ENOMEM;
+ goto exit;
/* Acquire IO memory for vendorreq */
pIo_buf = dvobjpriv->usb_vendor_req_buf;
@@ -147,7 +149,7 @@ static u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
u16 wvalue;
u16 index;
u16 len;
- __le32 data;
+ __le32 data = 0;
request = 0x05;
requesttype = 0x01;/* read_in */
@@ -166,7 +168,7 @@ static u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
u16 wvalue;
u16 index;
u16 len;
- __le32 data;
+ __le32 data = 0;
request = 0x05;
diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h
b/drivers/staging/rtl8188eu/include/osdep_service.h
index 5cf13a6..64a7c34 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -67,15 +67,6 @@ static inline struct list_head *get_list_head(struct __queue
*queue)
return &(queue->queue);
}
-static inline int _enter_critical_mutex(struct mutex *pmutex,
- unsigned long *pirqL)
-{
- int ret;
-
- ret = mutex_lock_interruptible(pmutex);
- return ret;
-}
-
static inline void rtw_list_delete(struct list_head *plist)
{
list_del_init(plist);
diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index bc9ae1d..0cd39ca 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -1109,7 +1109,8 @@ int netdev_open(struct net_device *pnetdev)
int ret;
struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
- _enter_critical_mutex(padapter->hw_init_mutex, NULL);
+ if (mutex_lock_interruptible(padapter->hw_init_mutex))
+ return -1;
ret = _netdev_open(pnetdev);
mutex_unlock(padapter->hw_init_mutex);
return ret;
--
1.8.4.5
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