5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Joe Hattori joe@pf.is.s.u-tokyo.ac.jp
[ Upstream commit de124b61e179e690277116e6be512e4f422b5dd8 ]
dss_of_port_get_parent_device() leaks an OF node reference when i >= 2 and struct device_node *np is present. Since of_get_next_parent() obtains a reference of the returned OF node, call of_node_put() before returning NULL.
This was found by an experimental verifier that I am developing, and no runtime test was able to be performed due to that lack of actual devices.
Fixes: f76ee892a99e ("omapfb: copy omapdss & displays for omapfb") Signed-off-by: Joe Hattori joe@pf.is.s.u-tokyo.ac.jp Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c index 0282d4eef139d..3b16c3342cb77 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c @@ -102,6 +102,7 @@ struct device_node *dss_of_port_get_parent_device(struct device_node *port) np = of_get_next_parent(np); }
+ of_node_put(np); return NULL; }