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Message-Id: <20220302111120.24984-1-jiapeng.chong@linux.alibaba.com> Date: Wed, 2 Mar 2022 19:11:20 +0800 From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com> To: sj@...nel.org Cc: akpm@...ux-foundation.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>, Abaci Robot <abaci@...ux.alibaba.com> Subject: [PATCH] mm/damon/sysfs: Fix missing error code in damon_sysfs_attrs_add_dirs() The error code is missing in this code scenario, add the error code '-ENOMEM' to the return value 'err'. Eliminate the follow smatch warning: mm/damon/sysfs.c:1647 damon_sysfs_attrs_add_dirs() warn: missing error code 'err'. Reported-by: Abaci Robot <abaci@...ux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com> --- mm/damon/sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 32a9d21c0db5..0eca71163924 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1643,8 +1643,10 @@ static int damon_sysfs_attrs_add_dirs(struct damon_sysfs_attrs *attrs) attrs->intervals = intervals; nr_regions_range = damon_sysfs_ul_range_alloc(10, 1000); - if (!nr_regions_range) + if (!nr_regions_range) { + err = -ENOMEM; goto put_intervals_out; + } err = kobject_init_and_add(&nr_regions_range->kobj, &damon_sysfs_ul_range_ktype, &attrs->kobj, -- 2.20.1.7.g153144c
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