[PATCH] phy: use IS_ERR_OR_NULL() helper in of_phy_put()

[Yang Xiuwei]

From: Yang Xiuwei <yangxiuwei@xxxxxxxxxx>

The current check for `!phy || IS_ERR(phy)` can be simplified to
the standard helper macro IS_ERR_OR_NULL(). This improves code
readability and maintains consistency with kernel coding practices.

Signed-off-by: Yang Xiuwei <yangxiuwei@xxxxxxxxxx>

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 04a5a34e7a95..9248f2249849 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -677,7 +677,7 @@ EXPORT_SYMBOL_GPL(of_phy_get);
  */
 void of_phy_put(struct phy *phy)
 {
-	if (!phy || IS_ERR(phy))
+	if (IS_ERR_OR_NULL(phy))
 		return;
 
 	mutex_lock(&phy->mutex);
-- 
2.25.1