From: Leo Kim <leo.kim@xxxxxxxxx>
This patch removes the potential faults which may happen when unexpectedly
getting access to invalid pointer. The pointer of pstrWFIDrv is unlikely
to be invalid. However, it is safer to return error when the invalid
memory is unfortunately accessed.
Signed-off-by: Leo Kim <leo.kim@xxxxxxxxx>
Signed-off-by: Tony Cho <tony.cho@xxxxxxxxx>
---
drivers/staging/wilc1000/host_interface.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 6fdf392..151e8c4 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -2403,8 +2403,10 @@ static s32 Handle_RcvdGnrlAsyncInfo(tstrWILC_WFIDrv *drvHandler, tstrRcvdGnrlAsy
s32 s32Err = 0;
tstrWILC_WFIDrv *pstrWFIDrv = (tstrWILC_WFIDrv *) drvHandler;
- if (pstrWFIDrv == NULL)
+ if (unlikely(!pstrWFIDrv)) {
PRINT_ER("Driver handler is NULL\n");
+ return -EFAULT;
+ }
PRINT_D(GENERIC_DBG, "Current State = %d,Received state = %d\n", pstrWFIDrv->enuHostIFstate,
pstrRcvdGnrlAsyncInfo->pu8Buffer[7]);
--
1.9.1
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