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(parent: 2018862) | patch
usb: dwc3: ep0: fix DMA starvation by assigning req->trb on ep0
authorFelipe Balbi <felipe.balbi@linux.intel.com>
Mon, 11 Sep 2017 07:45:12 +0000 (10:45 +0300)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Mon, 18 Sep 2017 10:30:30 +0000 (13:30 +0300)
commiteed09522e8e4f25167177c1ba0f66603fa66a6c8
tree99db634867dcdabcfaed22789bdee863ec06d0b2tree | snapshot
parent2018862bdad13479b663e0e9615d7c6fcaa89285commit | diff
usb: dwc3: ep0: fix DMA starvation by assigning req->trb on ep0

If we don't assign a TRB to ep0 requests, we won't be able to unmap
the request later on resulting in starvation of DMA resources.

Fixes: d17735647984 ("usb: dwc3: gadget: only unmap requests from DMA if mapped")
Reported-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Tested-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/dwc3/ep0.c diff | blob | history
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