diff options
Diffstat (limited to 'fs/inotify.c')
| -rw-r--r-- | fs/inotify.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/inotify.c b/fs/inotify.c index 1f50302849c..732ec4bd577 100644 --- a/fs/inotify.c +++ b/fs/inotify.c @@ -848,7 +848,11 @@ static int inotify_release(struct inode *ignored, struct file *file) inode = watch->inode; mutex_lock(&inode->inotify_mutex); mutex_lock(&dev->mutex); - remove_watch_no_event(watch, dev); + + /* make sure we didn't race with another list removal */ + if (likely(idr_find(&dev->idr, watch->wd))) + remove_watch_no_event(watch, dev); + mutex_unlock(&dev->mutex); mutex_unlock(&inode->inotify_mutex); put_inotify_watch(watch); @@ -890,8 +894,7 @@ static int inotify_ignore(struct inotify_device *dev, s32 wd) mutex_lock(&dev->mutex); /* make sure that we did not race */ - watch = idr_find(&dev->idr, wd); - if (likely(watch)) + if (likely(idr_find(&dev->idr, wd) == watch)) remove_watch(watch, dev); mutex_unlock(&dev->mutex); |