From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7D21C1FECC5; Fri, 4 Apr 2025 00:06:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743725189; cv=none; b=VzlcBCUQmMsm+OpGx1PDg45IDZQaf1+iRweJ31SVjDYHafBybEOwALIEA3+3VC8b/iU7Srvz/m+dnjbjV6W2QNou+UZxn43eTaicB3YbRhb/AanID4qHEEpNkPErB18dQWG+OpoC424FCW7rNSiwlVuJXizysHSaz8/ksE8LRIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743725189; c=relaxed/simple; bh=19jQvQglCIX7UmwId0AixsHqVkVtQvrZZ4ovahq2e2o=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=VC28VZRDfk+p7MFvJ186KFMNGC5+PphJ9v5+lWhKiAeRNtjdAli3xBscCLVRQSEjeosmaR02f+cS4xNTRL/6+lnUdd78GZUU7FPFUAsMLWHi6tTHJZwgHukXLozOTXQPzohrPQgQt/nW8zmG46TduiJUXuZjyfCxRfbcr6lcnU8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VUR6Jv/s; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VUR6Jv/s" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52E87C4CEE3; Fri, 4 Apr 2025 00:06:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743725189; bh=19jQvQglCIX7UmwId0AixsHqVkVtQvrZZ4ovahq2e2o=; h=From:To:Cc:Subject:Date:From; b=VUR6Jv/sQavniKmERGSfDzAEElT/t2k2R6tvGmBTFflE/PNxtMEjmt+Rs5a7wxkvA xycJrKa9f73PreTmXQxx0YBwlaRllkiVK07PXy1+4GXk4/MTHkM47S1eq/qNDC+8xo GHWJ9wUMxGPv8MZHvAdvg/lGXErg5ZertVFDj5ggh4VQ/aGGpBWjNxqUYN1TfPWrvg aQ1Wg14RxpC2nxEgl3tVJK4VhG8gM8nBRtO/bxvLO501I7B5MwUI1Pb/I05lorwFMh y1rLCyApK2q/Tv2q4Jpcz+yk4TwA4fBjKQQSQgXd6TuT1lPb7Kw1f6VW04bAY3MRuO yy0gy675zR72g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chenyuan Yang , Geert Uytterhoeven , Matthias Brugger , Sasha Levin , linus.walleij@linaro.org, linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH AUTOSEL 6.6 01/16] pinctrl: renesas: rza2: Fix potential NULL pointer dereference Date: Thu, 3 Apr 2025 20:06:09 -0400 Message-Id: <20250404000624.2688940-1-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.85 Content-Transfer-Encoding: 8bit From: Chenyuan Yang [ Upstream commit f752ee5b5b86b5f88a5687c9eb0ef9b39859b908 ] `chip.label` in rza2_gpio_register() could be NULL. Add the missing check. Signed-off-by: Chenyuan Yang Reviewed-by: Geert Uytterhoeven Reviewed-by: Matthias Brugger Link: https://lore.kernel.org/20250210232552.1545887-1-chenyuan0y@gmail.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- 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