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authorGabriel Krisman Bertazi <krisman@collabora.com>2021-10-25 16:27:28 -0300
committerJan Kara <jack@suse.cz>2021-10-27 12:34:25 +0200
commit12f47bf0f0990933d95d021d13d31bda010648fd (patch)
tree91e6308596227c968bf9452aa737c79e3bcddeda /fs
parent330ae77d2a5b0af32c0f29e139bf28ec8591de59 (diff)
fanotify: Support null inode event in fanotify_dfid_inode
FAN_FS_ERROR doesn't support DFID, but this function is still called for every event. The problem is that it is not capable of handling null inodes, which now can happen in case of superblock error events. For this case, just returning dir will be enough. Link: https://lore.kernel.org/r/20211025192746.66445-14-krisman@collabora.com Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs')
-rw-r--r--fs/notify/fanotify/fanotify.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index c620b4f6fe12..397ee623ff1e 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -452,7 +452,7 @@ static struct inode *fanotify_dfid_inode(u32 event_mask, const void *data,
if (event_mask & ALL_FSNOTIFY_DIRENT_EVENTS)
return dir;
- if (S_ISDIR(inode->i_mode))
+ if (inode && S_ISDIR(inode->i_mode))
return inode;
return dir;