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[media] dvb: unlock on error in dvb_ca_en50221_io_do_ioctl()

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We recently pushed the locking down into this function, but there was
an error path where the unlock was missed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dan Carpenter 2013-01-04 14:56:02 -03:00 committed by Mauro Carvalho Chehab
parent 9898df6482
commit c4fe29a32f
1 changed files with 5 additions and 2 deletions
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7
drivers/media/dvb-core/dvb_ca_en50221.c
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@ -1227,8 +1227,10 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
case CA_GET_SLOT_INFO: {
struct ca_slot_info *info = parg;
if ((info->num > ca->slot_count) || (info->num < 0))
return -EINVAL;
if ((info->num > ca->slot_count) || (info->num < 0)) {
err = -EINVAL;
goto out_unlock;
}
info->type = CA_CI_LINK;
info->flags = 0;
@ -1247,6 +1249,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
break;
}
out_unlock:
mutex_unlock(&ca->ioctl_mutex);
return err;
}