From: Leo Kim <leo....@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....@atmel.com>
Signed-off-by: Glen Lee <glen....@atmel.com>
---
 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 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]);
 
-- 
1.9.1

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