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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
parent3e5e479a39ce9ed60cd63f7565cc1d9da77c2a4e (diff)
downloadlinux-fe396ad8e7526f059f7b8c7290d33a1b84adacab.tar.gz
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')
-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);