[PATCH] drm/bridge: samsung-dsim: Fix device node reference leak in samsung_dsim_parse_dt

[Miaoqian Lin]

The function samsung_dsim_parse_dt() calls of_graph_get_endpoint_by_regs()
to get the endpoint device node, but fails to call of_node_put() to release
the reference when the function returns. This results in a device node
reference leak.

Fix this by adding the missing of_node_put() call before returning from
the function.

Found via static analysis and code review.

Fixes: 77169a11d4e9 ("drm/bridge: samsung-dsim: add driver support for exynos7870 DSIM bridge")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
---
 drivers/gpu/drm/bridge/samsung-dsim.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index eabc4c32f6ab..1a5acd5077ad 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -2086,6 +2086,7 @@ static int samsung_dsim_parse_dt(struct samsung_dsim *dsi)
 		if (lane_polarities[1])
 			dsi->swap_dn_dp_data = true;
 	}
+	of_node_put(endpoint);
 
 	return 0;
 }
-- 
2.39.5 (Apple Git-154)