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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-10-21 13:07:09 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-03 11:38:40 +0300 |
| commit | 6cb2e4e3de10893f38dbf3923a9cc50c76548a89 (patch) | |
| tree | d62c8961066bc0feb8462616bb90176fd3558661 /drivers/usb/dwc3/core.h | |
| parent | 76a638f8ac0dd1dadee8f87acff36174d473b7c1 (diff) | |
| download | linux-6cb2e4e3de10893f38dbf3923a9cc50c76548a89.tar.xz | |
usb: dwc3: gadget: cope with XferNotReady before usb_ep_queue()
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>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index c2b86856e85d..ebc8a542407f 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -551,6 +551,7 @@ struct dwc3_ep { #define DWC3_EP_PENDING_REQUEST (1 << 5) #define DWC3_EP_MISSED_ISOC (1 << 6) #define DWC3_EP_END_TRANSFER_PENDING (1 << 7) +#define DWC3_EP_TRANSFER_STARTED (1 << 8) /* This last one is specific to EP0 */ #define DWC3_EP0_DIR_IN (1 << 31) |