diff options
| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2024-11-14 01:02:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:03:00 +0100 |
| commit | 068aab9564d4a2e1224c853773a09934c23526b8 (patch) | |
| tree | 148df1ef204e40aacc7bb28598177dae114787d9 | |
| parent | 04737703e40fff8364440ba0c77127cf5bd329b1 (diff) | |
usb: dwc3: ep0: Don't clear ep0 DWC3_EP_TRANSFER_STARTED
commit 5d2fb074dea289c41f5aaf2c3f68286bee370634 upstream.
The driver cannot issue the End Transfer command to the SETUP transfer.
Don't clear DWC3_EP_TRANSFER_STARTED flag to make sure that the driver
won't send Start Transfer command again, which can cause no-resource
error. For example this can occur if the host issues a reset to the
device.
Cc: stable@vger.kernel.org
Fixes: 76cb323f80ac ("usb: dwc3: ep0: clear all EP0 flags")
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/d3d618185fd614bb7426352a9fc1199641d3b5f5.1731545781.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index c9533a99e47c..874497f86499 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -232,7 +232,7 @@ void dwc3_ep0_stall_and_restart(struct dwc3 *dwc) /* stall is always issued on EP0 */ dep = dwc->eps[0]; __dwc3_gadget_ep_set_halt(dep, 1, false); - dep->flags &= DWC3_EP_RESOURCE_ALLOCATED; + dep->flags &= DWC3_EP_RESOURCE_ALLOCATED | DWC3_EP_TRANSFER_STARTED; dep->flags |= DWC3_EP_ENABLED; dwc->delayed_status = false; |