[PATCH -next] pinctrl: ti-iodelay: Fix return value check in ti_iodelay_probe()

[Wei Yongjun <weiyj.lk@xxxxxxxxx>]

From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>

In case of error, the function pinctrl_register() returns
NULL not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

Fixes: 003910ebc83b ("pinctrl: Introduce TI IOdelay configuration driver")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 3b86d3d..8899f5e 100644
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -892,9 +892,9 @@ static int ti_iodelay_probe(struct platform_device *pdev)
 	iod->desc.owner = THIS_MODULE;
 
 	iod->pctl = pinctrl_register(&iod->desc, dev, iod);
-	if (!iod->pctl) {
+	if (IS_ERR(iod->pctl)) {
 		dev_err(dev, "Failed to register pinctrl\n");
-		ret = -ENODEV;
+		ret = PTR_ERR(iod->pctl);
 		goto exit_out;
 	}

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