usb: dwc3: gadget: cope with XferNotReady before usb_ep_queue()

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If XferNotReady comes before usb_ep_queue() we will
set our PENDING request flag and wait for a
request. However, originally, we were assuming
usb_ep_queue() would always happen before our first
XferNotReady and that causes a corner case where we
could try to issue ENDTRANSFER command before
STARTTRANSFER.

Let's fix that by tracking endpoints which have been
started.

Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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This commit is contained in:

Felipe Balbi 2016-10-21 13:07:09 +03:00

parent 76a638f8ac

commit 6cb2e4e3de

2 changed files with 34 additions and 7 deletions

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1

drivers/usb/dwc3/core.h

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40

drivers/usb/dwc3/gadget.c

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