Hi Dan,
Thanks for the fix. I have missed earlier that PTR_ERR() casts NULL to
0, which kernel treats it as success and not valid in this case.
Thanks,
Pratap
On 3/10/2025 6:52 AM, Dan Carpenter wrote:
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The platform_get_resource() returns NULL on error. It doesn't
return error pointers. Fix the error checking to match.
Fixes: e97435ab09f3 ("pinctrl: amd: isp411: Add amdisp GPIO pinctrl")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/pinctrl/pinctrl-amdisp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-amdisp.c b/drivers/pinctrl/pinctrl-amdisp.c
index ce21ed84b929..9256ed67bb20 100644
--- a/drivers/pinctrl/pinctrl-amdisp.c
+++ b/drivers/pinctrl/pinctrl-amdisp.c
@@ -183,8 +183,8 @@ static int amdisp_pinctrl_probe(struct platform_device *pdev)
pdev->dev.init_name = DRV_NAME;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (IS_ERR(res))
- return PTR_ERR(res);
+ if (!res)
+ return -EINVAL;
pctrl->gpiobase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pctrl->gpiobase))
--
2.47.2
