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

[Krzysztof Kozlowski]

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@xxxxxxxxxx>
---
 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