media: ov7251: fix mutex lock unbalance

As reported by smatch/sparse:

	drivers/media/i2c/ov7251.c:1381 ov7251_s_stream() warn: inconsistent returns '&ov7251->lock'.
	  Locked on  : 1381
	  Unlocked on: 1377

There's a lock unbalance at this routine, as it keeps the lock on
certain errors. Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/i2c/ov7251.c b/drivers/media/i2c/ov7251.c
index 4867dc86cd2e4eb4a99c811d0b69c90d700a7bb7..0e7be15bc20a7ea8c2ec59e4b96a19654c7f3a67 100644 (file)
--- a/drivers/media/i2c/ov7251.c
+++ b/drivers/media/i2c/ov7251.c
@@ -1378,6 +1378,7 @@ unlock_out:
 
 err_power_down:
        pm_runtime_put_noidle(ov7251->dev);
+       mutex_unlock(&ov7251->lock);
        return ret;
 }