Fix regression which breaks DFS mounting

Patch a6b5058 results in -EREMOTE returned by is_path_accessible() in
cifs_mount() to be ignored which breaks DFS mounting.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 8 insertions, 6 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index c841244a954d..7b67179521cf 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3688,14 +3688,16 @@ remote_path_check:
                         goto mount_fail_check;
                 }
 
-                rc = cifs_are_all_path_components_accessible(server,
+                if (rc != -EREMOTE) {
+                        rc = cifs_are_all_path_components_accessible(server,
                                                              xid, tcon, cifs_sb,
                                                              full_path);
-                if (rc != 0) {
-                        cifs_dbg(VFS, "cannot query dirs between root and final path, "
-                                 "enabling CIFS_MOUNT_USE_PREFIX_PATH\n");
-                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
-                        rc = 0;
+                        if (rc != 0) {
+                                cifs_dbg(VFS, "cannot query dirs between root and final path, "
+                                         "enabling CIFS_MOUNT_USE_PREFIX_PATH\n");
+                                cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+                                rc = 0;
+                        }
                 }
                 kfree(full_path);
         }