From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sat, 3 Mar 2018 12:56:30 +0000 (-0500)
Subject: media: imx-media-csi: Do not propagate the error when pinctrl is not found
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=dd5747fb9235d28ac2534e0ad4826a810a93e003;p=openwrt%2Fstaging%2Fblogic.git

media: imx-media-csi: Do not propagate the error when pinctrl is not found

Since commit 52e17089d185 ("media: imx: Don't initialize vars that
won't be used") imx_csi_probe() fails to probe after propagating the
devm_pinctrl_get_select_default() error.

devm_pinctrl_get_select_default() may return -ENODEV when the CSI pinctrl
entry is not found, so better not to propagate the error in the -ENODEV
case to avoid a regression.

Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 00c9d625cfb5..16cab40156ca 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -1800,7 +1800,10 @@ static int imx_csi_probe(struct platform_device *pdev)
 	pinctrl = devm_pinctrl_get_select_default(priv->dev);
 	if (IS_ERR(pinctrl)) {
 		ret = PTR_ERR(priv->vdev);
-		goto free;
+		dev_dbg(priv->dev,
+			"devm_pinctrl_get_select_default() failed: %d\n", ret);
+		if (ret != -ENODEV)
+			goto free;
 	}
 
 	ret = v4l2_async_register_subdev(&priv->sd);