cifs: Fix soft lockup during fsstress

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

Cc: [email protected] # 5.13+
Signed-off-by: Rohith Surabattula <[email protected]>
Signed-off-by: Steve French <[email protected]>

Author: rohiths-msft

fs/cifs/misc.c

@@ -735,7 +735,7 @@ 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);
 			}
@@ -766,7 +766,7 @@ 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);
 			}