Staging: vt6655-6: shift wrap in hostap_set_encryption()

abySeq is an unsigned char so shifting more than 31 bits will lead to a
shift wrapping bug.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/hostap.c

@@ -596,9 +596,9 @@ static int hostap_set_encryption(PSDevice pDevice,
 
 	if (param->u.crypt.seq) {
 	    memcpy(&abySeq, param->u.crypt.seq, 8);
-		for (ii = 0 ; ii < 8 ; ii++) {
-	         KeyRSC |= (abySeq[ii] << (ii * 8));
-		}
+		for (ii = 0 ; ii < 8 ; ii++)
+			KeyRSC |= (unsigned long)abySeq[ii] << (ii * 8);
+
 		dwKeyIndex |= 1 << 29;
 		pMgmt->sNodeDBTable[iNodeIndex].KeyRSC = KeyRSC;
 	}

drivers/staging/vt6656/hostap.c

@@ -542,9 +542,9 @@ static int hostap_set_encryption(PSDevice pDevice,
 
 	if (param->u.crypt.seq) {
 	    memcpy(&abySeq, param->u.crypt.seq, 8);
-		for (ii = 0 ; ii < 8 ; ii++) {
-	         KeyRSC |= (abySeq[ii] << (ii * 8));
-		}
+		for (ii = 0 ; ii < 8 ; ii++)
+			KeyRSC |= (unsigned long)abySeq[ii] << (ii * 8);
+
 		dwKeyIndex |= 1 << 29;
 		pMgmt->sNodeDBTable[iNodeIndex].KeyRSC = KeyRSC;
 	}