cifs: unlock on error in smb3_reconfigure()

Unlock before returning if smb3_sync_session_ctx_passwords() fails.

Fixes: 7e654ab7da03 ("cifs: during remount, make sure passwords are in sync")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index c614c5d8b15e08c3100336d46c745d1b0bc47c73..49123f458d0c72e6e0a77223dfcc9e01180fbbc3 100644 (file)
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1008,8 +1008,10 @@ static int smb3_reconfigure(struct fs_context *fc)
         * later stage
         */
        rc = smb3_sync_session_ctx_passwords(cifs_sb, ses);
-       if (rc)
+       if (rc) {
+               mutex_unlock(&ses->session_mutex);
                return rc;
+       }
 
        /*
         * now that allocations for passwords are done, commit them