diff options
| author | Leo Kim <leo.kim@atmel.com> | 2015-10-28 15:27:21 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-29 08:16:52 +0900 |
| commit | dbef61e749caf22b51ed4e1981aedd8426a4d837 (patch) | |
| tree | 6911a03b5a9681b62c42214795d2ea81679dd707 /drivers/staging/wilc1000 | |
| parent | 82bb18e1bdcd774059556c58650a04c004a21c9d (diff) | |
staging: wilc1000: wilc_msgqueue.c : remove goto statement
This patch removes goto statement and moves the spin lock position.
If a memory allocation fails, directly returns an error.
The spin lock actually protects the pHandle. Therefore, call spin lock just
before pHandle is used.
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wilc1000')
| -rw-r--r-- | drivers/staging/wilc1000/wilc_msgqueue.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/staging/wilc1000/wilc_msgqueue.c b/drivers/staging/wilc1000/wilc_msgqueue.c index b13809a4b556..0eff121b8291 100644 --- a/drivers/staging/wilc1000/wilc_msgqueue.c +++ b/drivers/staging/wilc1000/wilc_msgqueue.c @@ -56,37 +56,35 @@ int wilc_mq_destroy(WILC_MsgQueueHandle *pHandle) int wilc_mq_send(WILC_MsgQueueHandle *pHandle, const void *pvSendBuffer, u32 u32SendBufferSize) { - int result = 0; unsigned long flags; Message *pstrMessage = NULL; if ((!pHandle) || (u32SendBufferSize == 0) || (!pvSendBuffer)) { PRINT_ER("pHandle or pvSendBuffer is null\n"); - result = -EFAULT; - goto ERRORHANDLER; + return -EFAULT; } if (pHandle->bExiting) { PRINT_ER("pHandle fail\n"); - result = -EFAULT; - goto ERRORHANDLER; + return -EFAULT; } - spin_lock_irqsave(&pHandle->strCriticalSection, flags); - /* construct a new message */ pstrMessage = kmalloc(sizeof(Message), GFP_ATOMIC); if (!pstrMessage) return -ENOMEM; + pstrMessage->u32Length = u32SendBufferSize; pstrMessage->pstrNext = NULL; pstrMessage->pvBuffer = kmemdup(pvSendBuffer, u32SendBufferSize, GFP_ATOMIC); if (!pstrMessage->pvBuffer) { - result = -ENOMEM; - goto ERRORHANDLER; + kfree(pstrMessage); + return -ENOMEM; } + spin_lock_irqsave(&pHandle->strCriticalSection, flags); + /* add it to the message queue */ if (!pHandle->pstrMessageList) { pHandle->pstrMessageList = pstrMessage; @@ -103,14 +101,7 @@ int wilc_mq_send(WILC_MsgQueueHandle *pHandle, up(&pHandle->hSem); -ERRORHANDLER: - /* error occured, free any allocations */ - if (pstrMessage) { - kfree(pstrMessage->pvBuffer); - kfree(pstrMessage); - } - - return result; + return 0; } /*! |