treewide: Use IS_ERR_OR_NULL over manual NULL check - refactor

[PATCH 41/61] pinctrl: Prefer IS_ERR_OR_NULL over manual NULL check

Posted by Philipp Hahn 4 weeks, 1 day ago

Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.

Change generated with coccinelle.

To: Linus Walleij <linusw@kernel.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
 drivers/pinctrl/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index b5e97689589fbf1b6750620fc193bc820012be2b..97a80989601abbe969d4b64cb0f3926fd4f291f5 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1991,7 +1991,7 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
 	device_root = debugfs_create_dir(debugfs_name, debugfs_root);
 	pctldev->device_root = device_root;
 
-	if (IS_ERR(device_root) || !device_root) {
+	if (IS_ERR_OR_NULL(device_root)) {
 		pr_warn("failed to create debugfs directory for %s\n",
 			dev_name(pctldev->dev));
 		return;

-- 
2.43.0

Re: [PATCH 41/61] pinctrl: Prefer IS_ERR_OR_NULL over manual NULL check

Posted by Linus Walleij 4 weeks ago

On Tue, Mar 10, 2026 at 12:55 PM Philipp Hahn <phahn-oss@avm.de> wrote:

> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Linus Walleij <linusw@kernel.org>
> Cc: linux-gpio@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>

Patch applied to the pinctrl tree as obviously correct.

Yours,
Linus Walleij