[PATCH] drm/sun4i: Fix pdev reference leak in sun8i_r40_tcon_tv_set_mux()

[Wentao Liang]

of_find_device_by_node() takes a reference to the TCON TOP device
which the error paths release, but the success path returns without
doing so.  Drop the reference before returning success.

Fixes: 0305189afb32 ("drm/sun4i: tcon: Add support for R40 TCON")
Cc: stable at vger.kernel.org
Signed-off-by: Wentao Liang <vulab at iscas.ac.cn>
---
 drivers/gpu/drm/sun4i/sun4i_tcon.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 960e83c8291d..07350361fc4b 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -1444,6 +1444,8 @@ static int sun8i_r40_tcon_tv_set_mux(struct sun4i_tcon *tcon,
 		}
 	}
 
+	put_device(&pdev->dev);
+
 	return 0;
 }
 
-- 
2.34.1