shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

usb: dwc3: ep0: Don't clear ep0 DWC3_EP_TRANSFER_STARTED

Browse Source 
[ Upstream commit 5d2fb074dea289c41f5aaf2c3f68286bee370634 ]

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: 76cb323f80 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thinh Nguyen
2024-11-14 01:02:06 +00:00
committed by Greg Kroah-Hartman
parent 68fb250eec
commit 749a916a9c
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/dwc3/ep0.c
View File

@@ -229,7 +229,7 @@ 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;