[PATCH 57/61] reset: Prefer IS_ERR_OR_NULL over manual NULL check

Philipp Hahn phahn-oss at avm.de
Tue Mar 10 04:49:23 PDT 2026


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

Semantich change: Previously the code only printed the warning on error,
but not when the pointer was NULL. Now the warning is printed in both
cases!

Change found with coccinelle.

To: Philipp Zabel <p.zabel at pengutronix.de>
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss at avm.de>
---
 drivers/reset/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index fceec45c8afc1e74fe46311bdc023ff257e8d770..649bb4ebabb20a09349ccbfc62f8280621df450e 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -715,7 +715,7 @@ EXPORT_SYMBOL_GPL(reset_control_bulk_acquire);
  */
 void reset_control_release(struct reset_control *rstc)
 {
-	if (!rstc || WARN_ON(IS_ERR(rstc)))
+	if (WARN_ON(IS_ERR_OR_NULL(rstc)))
 		return;
 
 	if (reset_control_is_array(rstc))

-- 
2.43.0




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