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authorDan Carpenter <error27@gmail.com>2011-05-26 05:52:01 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-07-27 17:52:24 -0300
commit0528f354cfb98d8df32a76302ec07af1aa29dbd4 (patch)
treeb0dd64723598739b64a069cf08cac8e4602ddbd8 /drivers/media/rc/rc-main.c
parentec05a642140c7c34f7ba1cb8a94be9b1154286ae (diff)
downloadlinux-0528f354cfb98d8df32a76302ec07af1aa29dbd4.tar.bz2
[media] rc: double unlock in rc_register_device()
If change_protocol() fails and we goto out_raw, then it calls unlock twice. I noticed that the other time we called change_protocol() we held the &dev->lock, so I changed it to hold it here too. Reviewed-by: Jarod Wilson <jarod@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/rc/rc-main.c')
-rw-r--r--drivers/media/rc/rc-main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 3186ac7c2c10..30634ab5c226 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1099,7 +1099,6 @@ int rc_register_device(struct rc_dev *dev)
if (rc < 0)
goto out_input;
}
- mutex_unlock(&dev->lock);
if (dev->change_protocol) {
rc = dev->change_protocol(dev, rc_map->rc_type);
@@ -1107,6 +1106,8 @@ int rc_register_device(struct rc_dev *dev)
goto out_raw;
}
+ mutex_unlock(&dev->lock);
+
IR_dprintk(1, "Registered rc%ld (driver: %s, remote: %s, mode %s)\n",
dev->devno,
dev->driver_name ? dev->driver_name : "unknown",