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Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"

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commit 38317f5c0f upstream.

This reverts commit ffb80fc672.

Turns out that commit is wrong. Host controllers are allowed to use
Clear Feature HALT as means to sync data toggle between host and
periperal.

Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi
2018-11-19 08:34:04 +02:00
committed by Chris
parent 495ba788c6
commit ec1515c523
1 changed files with 0 additions and 5 deletions
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5
drivers/usb/dwc3/gadget.c
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@@ -1280,9 +1280,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
unsigned transfer_in_flight;
unsigned started;
if (dep->flags & DWC3_EP_STALL)
return 0;
if (dep->number > 1)
trb = dwc3_ep_prev_trb(dep, dep->trb_enqueue);
else
@@ -1307,8 +1304,6 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
else
dep->flags |= DWC3_EP_STALL;
} else {
if (!(dep->flags & DWC3_EP_STALL))
return 0;
ret = dwc3_send_clear_stall_ep_cmd(dep);
if (ret)