A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-05 19:31:57 -04:00
Code Issues Projects Releases Packages Wiki Activity

usb: gadget: dummy_hcd: remove usage of list iterator past the loop body

Browse source 
[ Upstream commit 7975f080d3557725160a878b1a64339043ba3d91 ]

To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable [1].

Link: https://lore.kernel.org/all/YhdfEIwI4EdtHdym@kroah.com/
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Link: https://lore.kernel.org/r/20220308171818.384491-26-jakobkoschel@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 8d63c83d8eb9 ("USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jakob Koschel 2025-09-17 09:30:02 -04:00 • committed by Greg Kroah-Hartman
commit 6070c741cc
1 changed files with 9 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

17
drivers/usb/gadget/udc/dummy_hcd.c
View file

@ -748,7 +748,7 @@ static int dummy_dequeue(struct usb_ep *_ep, struct usb_request *_req)
struct dummy *dum;
int retval = -EINVAL;
unsigned long flags;
struct dummy_request *req = NULL;
struct dummy_request *req = NULL, *iter;
if (!_ep || !_req)
return retval;
@ -760,13 +760,14 @@ static int dummy_dequeue(struct usb_ep *_ep, struct usb_request *_req)
local_irq_save(flags);
spin_lock(&dum->lock);
list_for_each_entry(req, &ep->queue, queue) {
if (&req->req == _req) {
list_del_init(&req->queue);
_req->status = -ECONNRESET;
retval = 0;
break;
}
list_for_each_entry(iter, &ep->queue, queue) {
if (&iter->req != _req)
continue;
list_del_init(&iter->queue);
_req->status = -ECONNRESET;
req = iter;
retval = 0;
break;
}
spin_unlock(&dum->lock);