diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index 1a5842ced489..48606e2ddffd 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -978,8 +978,10 @@ 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