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authorChao Yu <yuchao0@huawei.com>2019-12-30 17:41:41 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2020-01-17 16:48:42 -0800
commitfe396ad8e7526f059f7b8c7290d33a1b84adacab (patch)
tree4523feadd10697bd0bb45dcf1ec5f22453aebdcd /fs/f2fs/sysfs.c
parent3e5e479a39ce9ed60cd63f7565cc1d9da77c2a4e (diff)
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f2fs: fix memleak of kobject
If kobject_init_and_add() failed, caller needs to invoke kobject_put() to release kobject explicitly. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
-rw-r--r--fs/f2fs/sysfs.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index f698ec883034..5152a7487335 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -740,10 +740,12 @@ int __init f2fs_init_sysfs(void)
ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
NULL, "features");
- if (ret)
+ if (ret) {
+ kobject_put(&f2fs_feat);
kset_unregister(&f2fs_kset);
- else
+ } else {
f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
+ }
return ret;
}
@@ -764,8 +766,11 @@ int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
init_completion(&sbi->s_kobj_unregister);
err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
"%s", sb->s_id);
- if (err)
+ if (err) {
+ kobject_put(&sbi->s_kobj);
+ wait_for_completion(&sbi->s_kobj_unregister);
return err;
+ }
if (f2fs_proc_root)
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);