The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 445e1658894fd74eab7e53071fa16233887574ed # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2026010524-trespass-although-c962@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 445e1658894fd74eab7e53071fa16233887574ed Mon Sep 17 00:00:00 2001 From: Miaoqian Lin linmq006@gmail.com Date: Wed, 3 Sep 2025 21:37:29 +0800 Subject: [PATCH] media: renesas: rcar_drif: fix device node reference leak in rcar_drif_bond_enabled
The function calls of_parse_phandle() which returns a device node with an incremented reference count. When the bonded device is not available, the function returns NULL without releasing the reference, causing a reference leak.
Add of_node_put(np) to release the device node reference. The of_node_put function handles NULL pointers.
Found through static analysis by reviewing the doc of of_parse_phandle() and cross-checking its usage patterns across the codebase.
Fixes: 7625ee981af1 ("[media] media: platform: rcar_drif: Add DRIF support") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Fabrizio Castro fabrizio.castro.jz@renesas.com Signed-off-by: Hans Verkuil hverkuil+cisco@kernel.org
diff --git a/drivers/media/platform/renesas/rcar_drif.c b/drivers/media/platform/renesas/rcar_drif.c index 11bf47fb8266..0844934f7aa6 100644 --- a/drivers/media/platform/renesas/rcar_drif.c +++ b/drivers/media/platform/renesas/rcar_drif.c @@ -1246,6 +1246,7 @@ static struct device_node *rcar_drif_bond_enabled(struct platform_device *p) if (np && of_device_is_available(np)) return np;
+ of_node_put(np); return NULL; }