From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 19 May 2021 14:16:50 +0000 (+0300)
Subject: staging: emxx_udc: fix loop in _nbu2ss_nuke()
X-Git-Tag: v5.4.124~20
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=3ee1d6e23108303e426ede13e19cbc1007abfae4;p=users%2Fdwmw2%2Flinux.git

staging: emxx_udc: fix loop in _nbu2ss_nuke()

[ Upstream commit e0112a7c9e847ada15a631b88e279d547e8f26a7 ]

The _nbu2ss_ep_done() function calls:

	list_del_init(&req->queue);

which means that the loop will never exit.

Fixes: ca3d253eb967 ("Staging: emxx_udc: Iterate list using list_for_each_entry")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YKUd0sDyjm/lkJfJ@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index a6c893ddbf280..cc4c18c3fb36d 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -2064,7 +2064,7 @@ static int _nbu2ss_nuke(struct nbu2ss_udc *udc,
 			struct nbu2ss_ep *ep,
 			int status)
 {
-	struct nbu2ss_req *req;
+	struct nbu2ss_req *req, *n;
 
 	/* Endpoint Disable */
 	_nbu2ss_epn_exit(udc, ep);
@@ -2076,7 +2076,7 @@ static int _nbu2ss_nuke(struct nbu2ss_udc *udc,
 		return 0;
 
 	/* called with irqs blocked */
-	list_for_each_entry(req, &ep->queue, queue) {
+	list_for_each_entry_safe(req, n, &ep->queue, queue) {
 		_nbu2ss_ep_done(ep, req, status);
 	}