linux-kernel - [PATCH v1 1/2] mm/damon/sysfs: remove unnecessary variables

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Message-Id: <20220919151201.66696-1-xhao@linux.alibaba.com>
Date:   Mon, 19 Sep 2022 23:12:00 +0800
From:   Xin Hao <xhao@...ux.alibaba.com>
To:     sj@...nel.org
Cc:     akpm@...ux-foundation.org, damon@...ts.linux.dev,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        xhao@...ux.alibaba.com
Subject: [PATCH v1 1/2] mm/damon/sysfs: remove unnecessary variables

Just do a little change here, the 'err' variable really no need to stay
here.

Signed-off-by: Xin Hao <xhao@...ux.alibaba.com>
---
 mm/damon/sysfs.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 0cca1909bf67..b852a75b9f39 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -1109,9 +1109,8 @@ static ssize_t start_store(struct kobject *kobj, struct kobj_attribute *attr,
 {
 	struct damon_sysfs_region *region = container_of(kobj,
 			struct damon_sysfs_region, kobj);
-	int err = kstrtoul(buf, 0, &region->start);

-	if (err)
+	if (kstrtoul(buf, 0, &region->start))
 		return -EINVAL;
 	return count;
 }
@@ -1130,9 +1129,8 @@ static ssize_t end_store(struct kobject *kobj, struct kobj_attribute *attr,
 {
 	struct damon_sysfs_region *region = container_of(kobj,
 			struct damon_sysfs_region, kobj);
-	int err = kstrtoul(buf, 0, &region->end);

-	if (err)
+	if (kstrtoul(buf, 0, &region->end))
 		return -EINVAL;
 	return count;
 }
--
2.31.0