[media] mem2mem_testdev: unlock and return error code properly
We recently added locking to this function, but there was an error path
which accidentally returned holding a lock. Also we returned zero on
failure on some paths instead of the error code.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/platform/mem2mem_testdev.c b/drivers/media/platform/mem2mem_testdev.c
index 6d0d2fb..51b6dd4 100644
--- a/drivers/media/platform/mem2mem_testdev.c
+++ b/drivers/media/platform/mem2mem_testdev.c
@@ -911,10 +911,9 @@
v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_time_msec, NULL);
v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_num_bufs, NULL);
if (hdl->error) {
- int err = hdl->error;
-
+ rc = hdl->error;
v4l2_ctrl_handler_free(hdl);
- return err;
+ goto open_unlock;
}
ctx->fh.ctrl_handler = hdl;
v4l2_ctrl_handler_setup(hdl);
@@ -946,7 +945,7 @@
open_unlock:
mutex_unlock(&dev->dev_mutex);
- return 0;
+ return rc;
}
static int m2mtest_release(struct file *file)