* [PATCH AUTOSEL 6.6 01/16] pinctrl: renesas: rza2: Fix potential NULL pointer dereference
@ 2025-04-04 0:06 Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2025-04-04 0:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Chenyuan Yang, Geert Uytterhoeven, Matthias Brugger, Sasha Levin,
linus.walleij, linux-renesas-soc, linux-gpio
From: Chenyuan Yang <chenyuan0y@gmail.com>
[ Upstream commit f752ee5b5b86b5f88a5687c9eb0ef9b39859b908 ]
`chip.label` in rza2_gpio_register() could be NULL.
Add the missing check.
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/20250210232552.1545887-1-chenyuan0y@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/renesas/pinctrl-rza2.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pinctrl/renesas/pinctrl-rza2.c b/drivers/pinctrl/renesas/pinctrl-rza2.c
index 990b96d459671..c5dc63d9bd3fc 100644
--- a/drivers/pinctrl/renesas/pinctrl-rza2.c
+++ b/drivers/pinctrl/renesas/pinctrl-rza2.c
@@ -243,6 +243,9 @@ static int rza2_gpio_register(struct rza2_pinctrl_priv *priv)
int ret;
chip.label = devm_kasprintf(priv->dev, GFP_KERNEL, "%pOFn", np);
+ if (!chip.label)
+ return -ENOMEM;
+
chip.parent = priv->dev;
chip.ngpio = priv->npins;
--
2.39.5
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