xhci: Prevent early endpoint restart when handling STALL errors.

Ensure that an endpoint halted due to device STALL is not
restarted before a Clear_Feature(ENDPOINT_HALT) request is sent to
the device.

The host side of the endpoint may otherwise be started early by the
'Set TR Deq' command completion handler which is called if dequeue
is moved past a cancelled or halted TD.

Prevent this with a new flag set for bulk and interrupt endpoints
when a Stall Error is received. Clear it in hcd->endpoint_reset()
which is called after Clear_Feature(ENDPOINT_HALT) is sent.

Also add a debug message if a class driver queues a new URB after the
STALL. Note that class driver might not be aware of the STALL
yet when it submits the URB as URBs are given back in BH.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250306144954.3507700-13-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions