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| author | Felipe Balbi <balbi@ti.com> | 2011-11-29 10:35:47 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-12-12 11:48:46 +0200 |
| commit | e2617796053437df586c53e462076f74bcf268b4 (patch) | |
| tree | 0cf93cc0b643af4313bc84e64bdab7d37836976a /drivers/usb/dwc3 | |
| parent | e0ce0b0a0ae5a31ee96b38a7c5390f867634b4f6 (diff) | |
| download | linux-stable-e2617796053437df586c53e462076f74bcf268b4.tar.gz linux-stable-e2617796053437df586c53e462076f74bcf268b4.tar.bz2 linux-stable-e2617796053437df586c53e462076f74bcf268b4.zip | |
usb: dwc3: ep0: fix GetStatus handling (again)
previous commit fixed part of it but it was still
calling usb_ep_queue() from IRQ context without
loosing locks. That cannot be done otherwise we will
have a recursive locking.
Also, we need to assign the 'dep' pointer on
dwc->ep0_usb_req otherwise we will have a NULL
pointer dereference on dwc3_map_buffer_to_dma().
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 1ba86a114655..d6bfc73dedbd 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -302,11 +302,14 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, response_pkt = (__le16 *) dwc->setup_buf; *response_pkt = cpu_to_le16(usb_status); + + dep = dwc->eps[0]; + dwc->ep0_usb_req.dep = dep; dwc->ep0_usb_req.request.length = sizeof(*response_pkt); dwc->ep0_usb_req.request.dma = dwc->setup_buf_addr; dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl; - return usb_ep_queue(&dwc->eps[0]->endpoint, &dwc->ep0_usb_req.request, - GFP_ATOMIC); + + return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req); } static int dwc3_ep0_handle_feature(struct dwc3 *dwc, |