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[v3,1/4] staging: wilc1000: Modify null check routine

Message ID 1442900086-9480-1-git-send-email-glen.lee@atmel.com (mailing list archive)
State Not Applicable
Delegated to: Kalle Valo
Headers show

Commit Message

Glen Lee Sept. 22, 2015, 5:34 a.m. UTC 
From: Leo Kim <leo.kim@atmel.com>

This patch removes the potential faults which may happen when unexpectedly
getting access to invalid pointer. Return error when the invalid memory is
accessed.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
---
 drivers/staging/wilc1000/host_interface.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 62f4a8a..158d8b8 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -2384,8 +2384,10 @@  static s32 Handle_RcvdGnrlAsyncInfo(tstrWILC_WFIDrv *drvHandler,
 	s32 s32Err = 0;
 	tstrWILC_WFIDrv *pstrWFIDrv = (tstrWILC_WFIDrv *) drvHandler;
 
-	if (pstrWFIDrv == NULL)
+	if (!pstrWFIDrv) {
 		PRINT_ER("Driver handler is NULL\n");
+		return -ENODEV;
+	}
 	PRINT_D(GENERIC_DBG, "Current State = %d,Received state = %d\n", pstrWFIDrv->enuHostIFstate,
 		pstrRcvdGnrlAsyncInfo->pu8Buffer[7]);