linux-kernel - [PATCH 2/2] media: i2c: imx258: validate rotation only if it is provided

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Message-Id: <20201005151559.12003-2-krzk@kernel.org>
Date:   Mon,  5 Oct 2020 17:15:59 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 2/2] media: i2c: imx258: validate rotation only if it is provided

The sensor supports rotation by 180 degrees however the value of
"rotation" property should be validated only if it exists.  If
"rotation" is missing, do not fail the probe:

    imx258: probe of 3-001a failed with error -22

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/media/i2c/imx258.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index aedf8e7c6165..c52932e5b881 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -1284,7 +1284,7 @@ static int imx258_probe(struct i2c_client *client)
 	 * supports a single pixel order right now.
 	 */
 	ret = device_property_read_u32(&client->dev, "rotation", &val);
-	if (ret || val != 180)
+	if (!ret && val != 180)
 		return -EINVAL;
 
 	/* Initialize subdev */
-- 
2.17.1