This is a note to let you know that I've just added the patch titled
mtd: maps: Fix refcount leak in ap_flash_init
to the 5.4-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:
mtd-maps-fix-refcount-leak-in-ap_flash_init.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 27953438f703b5fd1212d112ffc1a48d8e078c0c
Author: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Mon May 23 18:32:55 2022 +0400
mtd: maps: Fix refcount leak in ap_flash_init
[ Upstream commit 77087a04c8fd554134bddcb8a9ff87b21f357926 ]
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write protection")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20220523143255.4376-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/maps/physmap-versatile.c b/drivers/mtd/maps/physmap-versatile.c
index 297a50957356..a1b8b7b25f88 100644
--- a/drivers/mtd/maps/physmap-versatile.c
+++ b/drivers/mtd/maps/physmap-versatile.c
@@ -93,6 +93,7 @@ static int ap_flash_init(struct platform_device *pdev)
return -ENODEV;
}
ebi_base = of_iomap(ebi, 0);
+ of_node_put(ebi);
if (!ebi_base)
return -ENODEV;
