cifs: fail i/o on soft mounts if sessionsetup errors out
commit b0dd940e582b6a60296b9847a54012a4b080dc72 upstream.
RHBZ: 1579050
If we have a soft mount we should fail commands for session-setup
failures (such as the password having changed/ account being deleted/ ...)
and return an error back to the application.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 5255dea..e8dc28d 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -247,9 +247,14 @@
*/
mutex_lock(&tcon->ses->session_mutex);
rc = cifs_negotiate_protocol(0, tcon->ses);
- if (!rc && tcon->ses->need_reconnect)
+ if (!rc && tcon->ses->need_reconnect) {
rc = cifs_setup_session(0, tcon->ses, nls_codepage);
-
+ if ((rc == -EACCES) && !tcon->retry) {
+ rc = -EHOSTDOWN;
+ mutex_unlock(&tcon->ses->session_mutex);
+ goto failed;
+ }
+ }
if (rc || !tcon->need_reconnect) {
mutex_unlock(&tcon->ses->session_mutex);
goto out;
@@ -291,6 +296,7 @@
case SMB2_SET_INFO:
rc = -EAGAIN;
}
+failed:
unload_nls(nls_codepage);
return rc;
}