[PATCH v2 4/9] media: imx: Fail conversion if pixel format not supported

From: Alexander Stein <alexander.stein@ew.tq-group.com>
To: Steve Longerbeam <slongerbeam@gmail.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Rui Miguel Silva <rmfrfs@gmail.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
Cc: linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Alexander Stein <alexander.stein@ew.tq-group.com>
Subject: [PATCH v2 4/9] media: imx: Fail conversion if pixel format not supported
Date: Fri, 11 Feb 2022 15:27:47 +0100	[thread overview]
Message-ID: <20220211142752.779952-5-alexander.stein@ew.tq-group.com> (raw)
In-Reply-To: <20220211142752.779952-1-alexander.stein@ew.tq-group.com>

From: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>

imx_media_find_mbus_format has NULL as a valid return value,
therefore the caller should take it into account.

Signed-off-by: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
 drivers/staging/media/imx/imx-media-utils.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index 02a4cb124d37..e59aaa77172a 100644
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -544,6 +544,9 @@ static int imx56_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix,
 		cc = imx_media_find_mbus_format(code, PIXFMT_SEL_YUV);
 	}
 
+	if (!cc)
+		return -EINVAL;
+
 	/* Round up width for minimum burst size */
 	width = round_up(mbus->width, 8);
 
-- 
2.25.1

