linux-kernel - [PATCH v4 5/5] media: imx: Fail conversion if pixel format not supported

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Message-ID: <20211104113631.206899-5-dorota.czaplejewicz@puri.sm>
Date:   Thu, 4 Nov 2021 12:43:58 +0100
From:   Dorota Czaplejewicz <dorota.czaplejewicz@...i.sm>
To:     Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...i.sm, phone-devel@...r.kernel.org
Subject: [PATCH v4 5/5] media: imx: Fail conversion if pixel format not
 supported

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@...i.sm>
---
 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 c0a84c79947e..8646f6ba1108 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);
 
-- 
2.31.1


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