linux-kernel - [PATCH v2 4/5] extcon: Use sizeof(*pointer) instead of sizeof(type)

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Date:   Wed,  5 Apr 2023 18:27:44 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Chanwoo Choi <cw00.choi@...sung.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Bumwoo Lee <bw365.lee@...sung.com>
Subject: [PATCH v2 4/5] extcon: Use sizeof(*pointer) instead of sizeof(type)

It is preferred to use sizeof(*pointer) instead of sizeof(type).
The type of the variable can change and one needs not change
the former (unlike the latter). No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Bumwoo Lee <bw365.lee@...sung.com>
---
 drivers/extcon/extcon.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index daaded92cf80..50c5fd454488 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -1098,8 +1098,7 @@ static int extcon_alloc_cables(struct extcon_dev *edev)
 	if (!edev->max_supported)
 		return 0;
 
-	edev->cables = kcalloc(edev->max_supported,
-			       sizeof(struct extcon_cable),
+	edev->cables = kcalloc(edev->max_supported, sizeof(*edev->cables),
 			       GFP_KERNEL);
 	if (!edev->cables)
 		return -ENOMEM;
@@ -1161,14 +1160,12 @@ static int extcon_alloc_muex(struct extcon_dev *edev)
 	for (index = 0; edev->mutually_exclusive[index]; index++)
 		;
 
-	edev->attrs_muex = kcalloc(index + 1,
-				   sizeof(struct attribute *),
+	edev->attrs_muex = kcalloc(index + 1, sizeof(*edev->attrs_muex),
 				   GFP_KERNEL);
 	if (!edev->attrs_muex)
 		return -ENOMEM;
 
-	edev->d_attrs_muex = kcalloc(index,
-				     sizeof(struct device_attribute),
+	edev->d_attrs_muex = kcalloc(index, sizeof(*edev->d_attrs_muex),
 				     GFP_KERNEL);
 	if (!edev->d_attrs_muex) {
 		kfree(edev->attrs_muex);
@@ -1214,8 +1211,8 @@ static int extcon_alloc_groups(struct extcon_dev *edev)
 		return 0;
 
 	edev->extcon_dev_type.groups = kcalloc(edev->max_supported + 2,
-			sizeof(struct attribute_group *),
-			GFP_KERNEL);
+					  sizeof(*edev->extcon_dev_type.groups),
+					  GFP_KERNEL);
 	if (!edev->extcon_dev_type.groups)
 		return -ENOMEM;
 
@@ -1293,7 +1290,7 @@ int extcon_dev_register(struct extcon_dev *edev)
 	spin_lock_init(&edev->lock);
 	if (edev->max_supported) {
 		edev->nh = kcalloc(edev->max_supported, sizeof(*edev->nh),
-				GFP_KERNEL);
+				   GFP_KERNEL);
 		if (!edev->nh) {
 			ret = -ENOMEM;
 			goto err_alloc_nh;
-- 
2.40.0.1.gaa8946217a0b