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 2026-10-13 08:07:32 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "usb: gadget: cser: Requeue OUT USB requests if ECONNRESET is received"

Browse source
This commit is contained in:
qctecmdr 2021-02-24 06:59:32 -08:00 • committed by Gerrit - the friendly Code Review server
commit b8cb5d94c9
1 changed files with 20 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

21
drivers/usb/gadget/function/f_cdev.c
View file

@ -986,6 +986,7 @@ static void usb_cser_read_complete(struct usb_ep *ep, struct usb_request *req)
{
struct f_cdev *port = ep->driver_data;
unsigned long flags;
int ret;
pr_debug("ep:(%pK)(%s) port:%p req_status:%d req->actual:%u\n",
ep, ep->name, port, req->status, req->actual);
@ -995,7 +996,25 @@ static void usb_cser_read_complete(struct usb_ep *ep, struct usb_request *req)
}
spin_lock_irqsave(&port->port_lock, flags);
if (!port->port_open || req->status || !req->actual) {
if (!port->port_open) {
list_add_tail(&req->list, &port->read_pool);
spin_unlock_irqrestore(&port->port_lock, flags);
return;
}
if (req->status || !req->actual) {
/*
* ECONNRESET can be returned when host issues clear EP halt,
* restart OUT requests if so.
*/
if (req->status == -ECONNRESET) {
spin_unlock_irqrestore(&port->port_lock, flags);
ret = usb_ep_queue(ep, req, GFP_KERNEL);
if (!ret)
return;
spin_lock_irqsave(&port->port_lock, flags);
}
list_add_tail(&req->list, &port->read_pool);
spin_unlock_irqrestore(&port->port_lock, flags);
return;