Commit 594addd4 authored Sep 07, 2021 by Nanyong Sun Committed by Greg Kroah-Hartman Sep 26, 2021

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>

parent 237ca37c

fs/nilfs2/sysfs.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)