| Message ID | 1353474529-8628-1-git-send-email-herton.krzesinski@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 0b24d9d..c7721db 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1832,6 +1832,7 @@ static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum) ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, ¶ms); WARN_ON_ONCE(ret); dep->res_trans_idx = 0; + dep->flags &= ~DWC3_EP_BUSY; } }
This is a note to let you know that I have just added a patch titled usb: dwc3: gadget: fix 'endpoint always busy' bug to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.yuz tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ From 5caadd9ba404f901f7343529263c6599ba8aa1a7 Mon Sep 17 00:00:00 2001 From: Felipe Balbi <balbi@ti.com> Date: Thu, 4 Oct 2012 11:58:00 +0300 Subject: [PATCH] usb: dwc3: gadget: fix 'endpoint always busy' bug commit 041d81f493d90c940ec41f0ec98bc7c4f2fba431 upstream. If a USB transfer has already been started, meaning we have already issued StartTransfer command to that particular endpoint, DWC3_EP_BUSY flag has also already been set. When we try to cancel this transfer which is already in controller's cache, we will not receive XferComplete event and we must clear DWC3_EP_BUSY in order to allow subsequent requests to be properly started. The best place to clear that flag is right after issuing DWC3_DEPCMD_ENDTRANSFER. Reported-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/usb/dwc3/gadget.c | 1 + 1 file changed, 1 insertion(+) -- 1.7.9.5