This is a note to let you know that I've just added the patch titled
drm/mcde: Fix refcount leak in mcde_dsi_bind
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-mcde-fix-refcount-leak-in-mcde_dsi_bind.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit aa3a9a932e51adb7da75ae24bf25005444a74190
Author: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Wed May 25 15:54:11 2022 +0400
drm/mcde: Fix refcount leak in mcde_dsi_bind
[ Upstream commit 3a149169e4a2f9127022fec6ef5d71b4e804b3b9 ]
Every iteration of for_each_available_child_of_node() decrements
the reference counter of the previous node. There is no decrement
when break out from the loop and results in refcount leak.
Add missing of_node_put() to fix this.
Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20220525115411.65455-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
index 5651734ce977..9f9ac8699310 100644
--- a/drivers/gpu/drm/mcde/mcde_dsi.c
+++ b/drivers/gpu/drm/mcde/mcde_dsi.c
@@ -1111,6 +1111,7 @@ static int mcde_dsi_bind(struct device *dev, struct device *master,
bridge = of_drm_find_bridge(child);
if (!bridge) {
dev_err(dev, "failed to find bridge\n");
+ of_node_put(child);
return -EINVAL;
}
}
