diff options
| author | Ronnie Sahlberg | 2022-05-10 09:42:05 +1000 |
|---|---|---|
| committer | Steve French | 2022-05-21 12:23:08 -0500 |
| commit | 198bf836dfb9c76105c93e6a3138ed1a33841fad (patch) | |
| tree | f7bbfb1a29686de7fb9c719d84be0b31435362a2 /fs | |
| parent | f695b2893505a5ac812f32167b48b028a4e41494 (diff) | |
cifs: check for smb1 in open_cached_dir()
Check protocol version in open_cached_dir() and return not supported
for SMB1. This allows us to call open_cached_dir() from code that
is common to both smb1 and smb2/3 in future patches without having to
do this check in the call-site.
At the same time, add a check if tcon is valid or not for the same reason.
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/smb2ops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index d6aaeff4a30a..2c93ee27d54d 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -776,7 +776,8 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid; struct dentry *dentry; - if (tcon->nohandlecache) + if (tcon == NULL || tcon->nohandlecache || + is_smb1_server(tcon->ses->server)) return -ENOTSUPP; if (cifs_sb->root == NULL) |