From: ZhangXiaoxu zhangxiaoxu5@huawei.com
[ Upstream commit 62c9d2674b31d4c8a674bee86b7edc6da2803aea ]
Commit 4d97f7d53da7dc83 ("inotify: Add flag IN_MASK_CREATE for inotify_add_watch()") forgot to call fsnotify_put_mark() with IN_MASK_CREATE after fsnotify_find_mark()
Fixes: 4d97f7d53da7dc83 ("inotify: Add flag IN_MASK_CREATE for inotify_add_watch()") Signed-off-by: ZhangXiaoxu zhangxiaoxu5@huawei.com Signed-off-by: Jan Kara jack@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- fs/notify/inotify/inotify_user.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 780bba695453..97a51690338e 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -519,8 +519,10 @@ static int inotify_update_existing_watch(struct fsnotify_group *group, fsn_mark = fsnotify_find_mark(&inode->i_fsnotify_marks, group); if (!fsn_mark) return -ENOENT; - else if (create) - return -EEXIST; + else if (create) { + ret = -EEXIST; + goto out; + }
i_mark = container_of(fsn_mark, struct inotify_inode_mark, fsn_mark);
@@ -548,6 +550,7 @@ static int inotify_update_existing_watch(struct fsnotify_group *group, /* return the wd */ ret = i_mark->wd;
+out: /* match the get from fsnotify_find_mark() */ fsnotify_put_mark(fsn_mark);