[patch 1/2] [media] rc: unlock on error in show_protocols()

[Dan Carpenter]

We recently introduced a new return -ENODEV in this function but we need
to unlock before returning.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 601d1ac1..d593bc6 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -789,8 +789,10 @@ static ssize_t show_protocols(struct device *device,
        } else if (dev->raw) {
                enabled = dev->raw->enabled_protocols;
                allowed = ir_raw_get_allowed_protocols();
-       } else
+       } else {
+               mutex_unlock(&dev->lock);
                return -ENODEV;
+       }
 
        IR_dprintk(1, "allowed - 0x%llx, enabled - 0x%llx\n",
                   (long long)allowed,
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