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 0E775222D72; Thu, 12 Dec 2024 16:40:34 +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=1734021634; cv=none; b=B272GQ1SrXlKYJ3oEF5eFTr/2cAvdne5s27/kyIuBjxWPy+onReZ3wPgOx84yqGhbGy2dQdq1GKPidd7O2IcbZt3fHj+E6nNOoZGJpdNfX9XULChWFDHMONDi/hx4ir1GkEOqYd3xeYN4YupsvWWvxqXVeqLayH5B932AGsHn+w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734021634; c=relaxed/simple; bh=sM+NpPG3yJyA9PGZGgFOIWZemRk2CyBsr/cmKf8RQsc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bxlQNMfiXB+oDs1/4AuQHpWCk/7idSj1aU9gLGBSybXztRd61CLK8lYni8Snc58fVxRstWxmzU4SupM8duoWGKcTVCtm7CYyhWMfMgcRBlJHLOI8nry/qpmQJOyfBmzo5j+7TfWtz6tvExv5GNoYuHZ8f3+zoiLzOhpDvPcuVeg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gs1DCG8Y; 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="gs1DCG8Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 874A7C4CECE; Thu, 12 Dec 2024 16:40:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734021633; bh=sM+NpPG3yJyA9PGZGgFOIWZemRk2CyBsr/cmKf8RQsc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gs1DCG8YbOCXx62LzxJtJ4ta6xbhWsmgyMCPM8hGhCvWTyfk3u7LAoJqLfIN9B8OZ mPckMUPcR1r4bG7dqgQuV2BTnqujSAoraSYK4drCZNB0p704b0m6gGzz6l/0UnNTIg Vqe6UvnQXeA1NzSy9Y4s81pODDRD7yMld6hRdqtM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ming Qian , TaoJiang , Hans Verkuil Subject: [PATCH 5.15 002/565] media: imx-jpeg: Set video drvdata before register video device Date: Thu, 12 Dec 2024 15:53:17 +0100 Message-ID: <20241212144311.537114489@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144311.432886635@linuxfoundation.org> References: <20241212144311.432886635@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 5.15-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/imx-jpeg/mxc-jpeg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c @@ -2155,6 +2155,7 @@ 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); @@ -2167,7 +2168,6 @@ 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",