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 66D4C14D29D; Fri, 6 Dec 2024 14:39:50 +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=1733495990; cv=none; b=o+Rgc4cm2TaQDWmqaioH+bDbwoJ6718ooK/LDX0tl8Tzi65MDmmxWdZlfzkIqO+jDQ2epsro9zgBQrXgYBD6LYI/8cJy0V5DnfuRsi/HQGewQSzQBq7EJTEPL+hThAM/BoTboxAmbwa8iOf1w+6BzcU5jXGUhVSPGQrxvv3rxBI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733495990; c=relaxed/simple; bh=i722dPi8l5s5O/2m2NTLZH543YHbmmB0cOqgDzFDtBY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MvM03ge8I3nvg/bbqNZyBjqzUB4z2v1ld/PdxmGCpn95O2atzQxrQq3BxMHId8iJa2zbFpgL4MKPgPlT4x+iy0szUKBwIbYQSPR8/peETB6TqrouBdNTBlTQyqqFZuzQJglZOudffzlQVpkZz5dVOhMpPRt1KDL6ciWex6cdPXU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aPv42w3a; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="aPv42w3a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C70B2C4CEDC; Fri, 6 Dec 2024 14:39:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733495990; bh=i722dPi8l5s5O/2m2NTLZH543YHbmmB0cOqgDzFDtBY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aPv42w3aKVcE4vmvB/rOb7XwFb55nxelQywg/0L+ykNkkoMX3wSwn1cPLPRWUssPC uvDQJNMSOjgQ5PfJUcfrjIgeG2MRBf6T16JWeii7zAaILW6wU7tJLkvIBLq6xeVPew QiboXuCA64zhI2FqU0aUdBVz/8n67bxjFJANAvZk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ming Qian , TaoJiang , Hans Verkuil Subject: [PATCH 6.12 021/146] media: imx-jpeg: Set video drvdata before register video device Date: Fri, 6 Dec 2024 15:35:52 +0100 Message-ID: <20241206143528.482992590@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241206143527.654980698@linuxfoundation.org> References: <20241206143527.654980698@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ming Qian commit d2b7ecc26bd5406d5ba927be1748aa99c568696c upstream. The video drvdata should be set before the video device is registered, otherwise video_drvdata() may return NULL in the open() file ops, and led to oops. Fixes: 2db16c6ed72c ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder") Cc: Signed-off-by: Ming Qian Reviewed-by: TaoJiang Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c @@ -2842,6 +2842,7 @@ static int mxc_jpeg_probe(struct platfor jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M; jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE; + video_set_drvdata(jpeg->dec_vdev, jpeg); if (mode == MXC_JPEG_ENCODE) { v4l2_disable_ioctl(jpeg->dec_vdev, VIDIOC_DECODER_CMD); v4l2_disable_ioctl(jpeg->dec_vdev, VIDIOC_TRY_DECODER_CMD); @@ -2854,7 +2855,6 @@ static int mxc_jpeg_probe(struct platfor dev_err(dev, "failed to register video device\n"); goto err_vdev_register; } - video_set_drvdata(jpeg->dec_vdev, jpeg); if (mode == MXC_JPEG_ENCODE) v4l2_info(&jpeg->v4l2_dev, "encoder device registered as /dev/video%d (%d,%d)\n",