staging: wilc1000: wilc_msgqueue.c: use ! operator instead of NULL comparison

This patch uses ! operator instead of NULL comparison.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wilc1000/wilc_msgqueue.c b/drivers/staging/wilc1000/wilc_msgqueue.c
index 53ce586d96b3066ac9287a25037ffca35b87d893..0770ff6d5d7f4054f20ec8753ca729e232911911 100644 (file)
--- a/drivers/staging/wilc1000/wilc_msgqueue.c
+++ b/drivers/staging/wilc1000/wilc_msgqueue.c
@@ -34,7 +34,7 @@ WILC_ErrNo WILC_MsgQueueDestroy(WILC_MsgQueueHandle *pHandle)
                pHandle->u32ReceiversCount--;
        }
 
-       while (pHandle->pstrMessageList != NULL) {
+       while (pHandle->pstrMessageList) {
                Message *pstrMessge = pHandle->pstrMessageList->pstrNext;
 
                kfree(pHandle->pstrMessageList);
@@ -57,7 +57,7 @@ WILC_ErrNo WILC_MsgQueueSend(WILC_MsgQueueHandle *pHandle,
        unsigned long flags;
        Message *pstrMessage = NULL;
 
-       if ((pHandle == NULL) || (u32SendBufferSize == 0) || (pvSendBuffer == NULL)) {
+       if ((!pHandle) || (u32SendBufferSize == 0) || (!pvSendBuffer)) {
                WILC_ERRORREPORT(s32RetStatus, WILC_INVALID_ARGUMENT);
        }
 
@@ -77,12 +77,12 @@ WILC_ErrNo WILC_MsgQueueSend(WILC_MsgQueueHandle *pHandle,
        memcpy(pstrMessage->pvBuffer, pvSendBuffer, u32SendBufferSize);
 
        /* add it to the message queue */
-       if (pHandle->pstrMessageList == NULL) {
+       if (!pHandle->pstrMessageList) {
                pHandle->pstrMessageList  = pstrMessage;
        } else {
                Message *pstrTailMsg = pHandle->pstrMessageList;
 
-               while (pstrTailMsg->pstrNext != NULL)
+               while (pstrTailMsg->pstrNext)
                        pstrTailMsg = pstrTailMsg->pstrNext;
 
                pstrTailMsg->pstrNext = pstrMessage;
@@ -95,8 +95,8 @@ WILC_ErrNo WILC_MsgQueueSend(WILC_MsgQueueHandle *pHandle,
        WILC_CATCH(s32RetStatus)
        {
                /* error occured, free any allocations */
-               if (pstrMessage != NULL) {
-                       if (pstrMessage->pvBuffer != NULL)
+               if (pstrMessage) {
+                       if (pstrMessage->pvBuffer)
                                kfree(pstrMessage->pvBuffer);
 
                        kfree(pstrMessage);
@@ -120,8 +120,8 @@ WILC_ErrNo WILC_MsgQueueRecv(WILC_MsgQueueHandle *pHandle,
        WILC_ErrNo s32RetStatus = WILC_SUCCESS;
        unsigned long flags;
 
-       if ((pHandle == NULL) || (u32RecvBufferSize == 0)
-           || (pvRecvBuffer == NULL) || (pu32ReceivedLength == NULL)) {
+       if ((!pHandle) || (u32RecvBufferSize == 0)
+           || (!pvRecvBuffer) || (!pu32ReceivedLength)) {
                WILC_ERRORREPORT(s32RetStatus, WILC_INVALID_ARGUMENT);
        }
 
@@ -151,7 +151,7 @@ WILC_ErrNo WILC_MsgQueueRecv(WILC_MsgQueueHandle *pHandle,
                spin_lock_irqsave(&pHandle->strCriticalSection, flags);
 
                pstrMessage = pHandle->pstrMessageList;
-               if (pstrMessage == NULL) {
+               if (!pstrMessage) {
                        spin_unlock_irqrestore(&pHandle->strCriticalSection, flags);
                        WILC_ERRORREPORT(s32RetStatus, WILC_FAIL);
                }