usb: gadget: call usb_gadget_check_config() to verify UDC capability
authorFrank Li <Frank.Li@nxp.com>
Fri, 7 Jul 2023 23:00:14 +0000 (19:00 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 25 Jul 2023 15:46:25 +0000 (17:46 +0200)
commitf4fc01af5b640bc39bd9403b5fd855345a2ad5f8
tree332af4d99ae41da8d9aa4a8b9c1c7567cb120852
parent609fded3f91972ada551c141c5d04a71704f8967
usb: gadget: call usb_gadget_check_config() to verify UDC capability

The legacy gadget driver omitted calling usb_gadget_check_config()
to ensure that the USB device controller (UDC) has adequate resources,
including sufficient endpoint numbers and types, to support the given
configuration.

Previously, usb_add_config() was solely invoked by the legacy gadget
driver. Adds the necessary usb_gadget_check_config() after the bind()
operation to fix the issue.

Fixes: dce49449e04f ("usb: cdns3: allocate TX FIFO size according to composite EP number")
Cc: stable <stable@kernel.org>
Reported-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20230707230015.494999-1-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/gadget/composite.c