tree 137703d8472a2e2a3aa03c53d28328917e819424
parent bd15f32ee8b7e6628f2471f0a4e6dda522dc40c5
author Marek Vasut <marek.vasut+renesas@mailbox.org> 1717968738 +0200
committer Mattijs Korpershoek <mkorpershoek@baylibre.com> 1720180879 +0200

usb: gadget: Add full ep_matches() check past .match_ep() callback

If .match_ep() callback returns non-NULL endpoint, immediately check
its usability and if the returned endpoint is usable, stop search and
return the endpoint. Otherwise, continue with best effort search for
usable endpoint.

Currently the code would attempt the best effort search in any case,
which may find another unexpected endpoint. It is likely that the
intention of the original code was to stop the search early.

Fixes: 77dcbdf3c1ce ("usb: gadget: Add match_ep() op to usb_gadget_ops")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # on vim3
Link: https://lore.kernel.org/r/20240609213449.194762-5-marek.vasut+renesas@mailbox.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>