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nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group 

[ Upstream commit b2fe39c248f3fa4bbb2a20759b4fdd83504190f7 ]

If kobject_init_and_add returns with error, kobject_put() is needed here
to avoid memory leak, because kobject_init_and_add may return error
without freeing the memory associated with the kobject it allocated.

Link: https://lkml.kernel.org/r/20210629022556.3985106-6-sunnanyong@huawei.com
Link: https://lkml.kernel.org/r/1625651306-10829-6-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nanyong Sun 2021-09-07 20:00:21 -07:00 committed by Greg Kroah-Hartman
parent 237ca37ca5
commit 594addd436
1 changed files with 2 additions and 2 deletions
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4
fs/nilfs2/sysfs.c
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@ -208,9 +208,9 @@ int nilfs_sysfs_create_snapshot_group(struct nilfs_root *root)
}
if (err)
return err;
kobject_put(&root->snapshot_kobj);
return 0;
return err;
}
void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *root)