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 9F8D718BC3F; Fri, 4 Apr 2025 00:07:05 +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=1743725225; cv=none; b=rTUC8dz+aA60KRD76mEn5KuGJsSdk2nVg+mJHQMhCp3XG9tlwL88WDI6TiYkH8DWgpnBa0iA3fST35+JV1VCyN965aD+bzVodjlsOp9Rbko61Kbr6MQ5P1B9G1qRlWAy1MEDEg6ZKeo48o7kyU+AQ0iyWVKCGguo5SHSbzZFmm0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743725225; c=relaxed/simple; bh=pUnn8vxwCFbiCaLWH2BwJ1k4g9VEAMybinWn0xgiA9U=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=qGx4SvJZpiP62y1kDmgmN7LMuKvcBQAFYujEVpwubhKII4GGVDGjv8qO5nglcbB9ci3b9fv1YKn6rmzldFnqy5czJZkVpEG4hDuaNxqHnPFDS831P8VDHjDejkXsiIqd4z1LqGSwMbn1oKetxL6tlLmrIJzaLhTVNccNCH22gSE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W2PTRacn; 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="W2PTRacn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25C60C4CEE3; Fri, 4 Apr 2025 00:07:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743725225; bh=pUnn8vxwCFbiCaLWH2BwJ1k4g9VEAMybinWn0xgiA9U=; h=From:To:Cc:Subject:Date:From; b=W2PTRacniIuO6EmamsbjPZ8DIsAuDyoLvZ8PTd7yME04oRuhI2tQv+i8fLX2NUkji RrBNiUQtUKNOCohIV1SxvnSG8wmwEIAroiforYC1l0/6/Miyxrm4LyNX/Q4NXZiHi7 n8/SOaunyfddEoiLXOv9pwlt8AjKYDIKnXU2PRrUElPiWcnfXpe4SFDQU7828Wn/8p PW8GkTs31YrBnQgO0lXcuYjz6CcX9QcwuOG8WgFr8TOrT2uFfBu5DMp1QtmEydxbpr Jys/SBizI61dxX1zhvRSnf5XpqfcvReYsja0S/PNUfr9XJjGEWf5g5ac8Ls9dqu6q4 yO7q1ZMFKCTdw== 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 6.1 01/10] pinctrl: renesas: rza2: Fix potential NULL pointer dereference Date: Thu, 3 Apr 2025 20:06:51 -0400 Message-Id: <20250404000700.2689158-1-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 6.1.132 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 12126e30dc20f..e94a6120e1e81 100644 --- a/drivers/pinctrl/renesas/pinctrl-rza2.c +++ b/drivers/pinctrl/renesas/pinctrl-rza2.c @@ -242,6 +242,9 @@ 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