Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: ed07a2bb11b358fdece44a760fc193d56f22cfb2
https://github.com/tianocore/edk2/commit/ed07a2bb11b358fdece44a760fc193d56f22cfb2
Author: Britton Chesley <[email protected]>
Date: 2024-07-03 (Wed, 03 Jul 2024)
Changed paths:
M MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c
Log Message:
-----------
MdeModulePkg/UsbBusDxe: USB issue fix when the port reset
BZ #4456
Fixed a bug which led to an ASSERT due to the USB device
context being maintained after a port reset, but the
underlying XHCI context was uninitialized. Specifically,
Xhc->UsbDevContext is freed after a reset and only
re-allocates the default [0] enpoint transfer ring.
In order to avoid a memory leak, device enumeration is
performed after freeing the necessary buffers. This
allocates the Xhc->UsbDevContext for all endpoints of
the USB device.
Signed-off-by: Britton Chesley <[email protected]>
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