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V4L/DVB: media/az6027: handle -EIO failure

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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 <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dan Carpenter 2010-05-04 09:31:13 -03:00 committed by Mauro Carvalho Chehab
parent 32ec4576c3
commit a18e659170
1 changed files with 1 additions and 4 deletions
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5
drivers/media/dvb/dvb-usb/az6027.c
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@ -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;
}