From 9f6c7aff21f81ae8856da1f63847d1362d523409 Mon Sep 17 00:00:00 2001
From: Rohith Surabattula <rohiths@microsoft.com>
Date: Fri, 17 Sep 2021 17:29:42 +0000
Subject: [PATCH] cifs: Fix soft lockup during fsstress
Git-commit: 71826b068884050d5fdd37fda857ba1539c513d3
Patch-mainline: v5.15-rc3
References: stable-5.14.9

commit 71826b068884050d5fdd37fda857ba1539c513d3 upstream.

Below traces are observed during fsstress and system got hung.
[  130.698396] watchdog: BUG: soft lockup - CPU#6 stuck for 26s!

Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Rohith Surabattula <rohiths@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 fs/cifs/misc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 9469f1cf0b46..57e695e3c969 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -736,7 +736,7 @@ cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode)
 			if (cancel_delayed_work(&cfile->deferred)) {
 				tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC);
 				if (tmp_list == NULL)
-					continue;
+					break;
 				tmp_list->cfile = cfile;
 				list_add_tail(&tmp_list->list, &file_head);
 			}
@@ -767,7 +767,7 @@ cifs_close_all_deferred_files(struct cifs_tcon *tcon)
 			if (cancel_delayed_work(&cfile->deferred)) {
 				tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC);
 				if (tmp_list == NULL)
-					continue;
+					break;
 				tmp_list->cfile = cfile;
 				list_add_tail(&tmp_list->list, &file_head);
 			}
-- 
2.26.2