From nobody Sun Feb 8 22:35:12 2026 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F9892D7D59 for ; Thu, 5 Feb 2026 03:42:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770262966; cv=none; b=aLXgc04VEeNIT0xKeoYnMNVQtvS0UFL0BFcr8yzEGTLvO7v4I9ErTFelAwC/OdpQufOwcs3RN3LrAbWEB0JvLEAHHyE0WeULlMWR99uis6VUff5LnqnfZV0ngUabA8nKS66iBUB6SPI8NvSfl2uuy+4mzLZfmQ3WDpGYvHP/nqA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770262966; c=relaxed/simple; bh=V1FGHpcBiMuhuQ8wUSU5P2jVvBudCcWzGbVg7MsYDDs=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Xz7QqJcNwfFmDvlCwOA2NE5wmZUi0BHG4eBlepeWEOCT/FZUyRFGtbcWKSIfvT7k4ymLjRvWYuD3bre6p4nUCFcvQHT1XMR6gnwouccM+Hr3sFy03ZJXafG7/jX5uaTMMeOJ1EkUboVj5h61BhZI0TDAny7UIKwHJEJmRqYwT5k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from localhost (unknown [124.16.138.129]) by APP-01 (Coremail) with SMTP id qwCowADnjWmsEYRppiAsBw--.11100S2; Thu, 05 Feb 2026 11:42:36 +0800 (CST) From: Chen Ni To: p.zabel@pengutronix.de, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com Cc: imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] reset: imx7: Check return value of regmap_attach_dev() in imx7_reset_probe() Date: Thu, 5 Feb 2026 11:42:19 +0800 Message-Id: <20260205034219.2531280-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qwCowADnjWmsEYRppiAsBw--.11100S2 X-Coremail-Antispam: 1UD129KBjvJXoWxJrW8Cw17JrW3CryDJryxZrb_yoW8GrWkpF s8uF1jkw13X3yfWws2q3ykZF17tw1fKa13CrW8Xws3Zan8tryDtFW3tFW7AF95JFy5WayY qa4kWay8ZF47tw7anT9S1TB71UUUUUDqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUvv14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4j 6F4UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVWxJr 0_GcWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_JrI_JrylYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lc7CjxVAaw2AFwI0_ Jw0_GFylc2xSY4AK67AK6r48MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r 4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF 67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2I x0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2 z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIevJa73Uj IFyTuYvjfUYb10UUUUU X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Add error checking for regmap_attach_dev() call in imx7_reset_probe() function to ensure proper error propagation. Return the value of regmap_attach_dev() if it fails to prevent proceeding with an incomplete regmap setup. Signed-off-by: Chen Ni --- drivers/reset/reset-imx7.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/reset/reset-imx7.c b/drivers/reset/reset-imx7.c index dd01fe11c5cb..59d0435302bb 100644 --- a/drivers/reset/reset-imx7.c +++ b/drivers/reset/reset-imx7.c @@ -364,6 +364,7 @@ static int imx7_reset_probe(struct platform_device *pde= v) struct device *dev =3D &pdev->dev; struct regmap_config config =3D { .name =3D "src" }; const struct imx7_src_variant *variant =3D of_device_get_match_data(dev); + int ret; =20 imx7src =3D devm_kzalloc(dev, sizeof(*imx7src), GFP_KERNEL); if (!imx7src) @@ -375,7 +376,9 @@ static int imx7_reset_probe(struct platform_device *pde= v) dev_err(dev, "Unable to get imx7-src regmap"); return PTR_ERR(imx7src->regmap); } - regmap_attach_dev(dev, imx7src->regmap, &config); + ret =3D regmap_attach_dev(dev, imx7src->regmap, &config); + if (ret) + return dev_err_probe(dev, ret, "regmap attach failed\n"); =20 imx7src->rcdev.owner =3D THIS_MODULE; imx7src->rcdev.nr_resets =3D variant->signals_num; --=20 2.25.1