From nobody Sun Feb 8 19:25:40 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 146962F2914 for ; Wed, 4 Feb 2026 09:08:04 +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=1770196085; cv=none; b=in86j3hHZNfycH+VWhmYYl80yzY3+2AuLuQ6pyoXu1NztD5jfxI3PORv9gUdNOuWv2u76EF+amCpgTTbtra0czcIeCbcTEjWja5+qtKx7RWZ0uvgs2Gbgw1SH1rqyE3jMTNYXuXyljFfO1FfWit4U+qQEbrs6ehWj5Q9dSE1yUI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770196085; c=relaxed/simple; bh=FZTLP1KYKmcvJ0xf9LwZAFgwjJpgsCxJb+hTRIWwSzM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=q9/vo19uMCRWYIRABM2xQMm4wiw8qOVpvInFcnIltnlsho5jWa1futADbirkySytwYsiMPlCoSXc93HCn2gMTk+G/siEAGRF+Ijbg0t2zD+zACGjbTYmHA45CIMYyqwNE9th8yf5fkH/6b7H6LJiScBxFQQwFwKbJjdkq5xcC9I= 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 qwCowABnD2tjDINpCwsgBw--.19519S2; Wed, 04 Feb 2026 17:07:47 +0800 (CST) From: Chen Ni To: p.zabel@pengutronix.de, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, luca.ceresoli@bootlin.com, louis.chauvet@bootlin.com Cc: dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] drm/imx: parallel-display: check return value of devm_drm_bridge_add() in imx_pd_probe() Date: Wed, 4 Feb 2026 17:06:29 +0800 Message-Id: <20260204090629.2209542-1-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: qwCowABnD2tjDINpCwsgBw--.19519S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKF1UJFy3tF1DWF43Aw45trb_yoWkWrX_uF 1j9F1rXFy5CFnFgr17Gw4fAryvvwn8uFWxAFn0gwsIqry5Aw43X39FvryDZrWxAw12yry5 Gw1UGF47AFnrCjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbTkFF20E14v26ryj6rWUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s 0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xII jxv20xvE14v26r106r15McIj6I8E87Iv67AKxVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr 1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxa n2IY04v7MxkF7I0En4kS14v26r4a6rW5MxkIecxEwVAFwVW8uwCF04k20xvY0x0EwIxGrw CFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE 14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2 IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxK x2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI 0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0pRrsqAUUUUU= X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Return the value of devm_drm_bridge_add() in order to propagate the error properly, if it fails due to resource allocation failure or bridge registration failure. This ensures that the probe function fails safely rather than proceeding with a potentially incomplete bridge setup. Fixes: bf7e97910b9f ("drm/imx: parallel-display: add the bridge before atta= ching it") Signed-off-by: Chen Ni Reviewed-by: Luca Ceresoli --- drivers/gpu/drm/imx/ipuv3/parallel-display.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/imx/ipuv3/parallel-display.c b/drivers/gpu/drm= /imx/ipuv3/parallel-display.c index 6fbf505d2801..590120a33fa0 100644 --- a/drivers/gpu/drm/imx/ipuv3/parallel-display.c +++ b/drivers/gpu/drm/imx/ipuv3/parallel-display.c @@ -256,7 +256,9 @@ static int imx_pd_probe(struct platform_device *pdev) =20 platform_set_drvdata(pdev, imxpd); =20 - devm_drm_bridge_add(dev, &imxpd->bridge); + ret =3D devm_drm_bridge_add(dev, &imxpd->bridge); + if (ret) + return ret; =20 return component_add(dev, &imx_pd_ops); } --=20 2.25.1