media/az6027: handle -EIO failure

PATCH In review Dan Carpenter 1 participant 1 message May 4, 2010

Subsystems (2)

Media (V4L/DVB) Kernel janitors

lore

Share & tools

lore

Dan Carpenter

author

2010-05-04 12:31 UTC #0 lore raw

PATCH 1/2 media/az6027: handle -EIO failure

If the az6027_usb_in_op() returns a negative errno ret is -EIO and in that case the value of b[0] may be undefined. The original code assigned 0 to ret, but since it's already 0 now we can skip that.

Signed-off-by Dan Carpenter <[email protected]>

drivers/media/dvb/dvb-usb/az6027.c +1 -4

index baaa301..6681ac1 100644
@@ -701,10 +701,7 @@ static int az6027_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int o
 	} else
 		ret = 0;
 
-	if (b[0] = 0) {
-		ret = 0;
-
-	} else if (b[0] = 1) {
+	if (!ret && b[0] = 1) {
 		ret = DVB_CA_EN50221_POLL_CAM_PRESENT |
 		      DVB_CA_EN50221_POLL_CAM_READY;
 	}