usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running

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Nothing prevents a broken HC from claiming that an endpoint is Running
and repeatedly rejecting Stop Endpoint with Context State Error.

Avoid infinite retries and give back cancelled TDs.

No such cases known so far, but HCs have bugs.

Signed-off-by: Michal Pecio <michal.pecio@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250311154551.4035726-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Michal Pecio 2025-03-11 17:45:51 +02:00 • committed by Greg Kroah-Hartman

parent dfc88357b6

commit 28a76fcc4c

1 changed files with 7 additions and 4 deletions

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drivers/usb/host/xhci-ring.c

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