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Commit bfb7fb79 authored by Wojtek Kaniewski's avatar Wojtek Kaniewski Committed by Greg Kroah-Hartman
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USB: at91_udc: Additional checks 



This patch performs additional checks in at91_udc, just in case of
some spurious interrupts or device enumeration.

Signed-off-by: default avatarWojtek Kaniewski <wojtekka@toxygen.net>
Acked-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Cc: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 943c4419

drivers/usb/gadget/at91_udc.c

+8 −2
Original line number Diff line number Diff line
@@ -955,7 +955,10 @@ static int at91_vbus_session(struct usb_gadget *gadget, int is_active) 
	// VDBG("vbus %s\n", is_active ? "on" : "off");

	local_irq_save(flags);

	udc->vbus = (is_active != 0);

	if (udc->driver)

		pullup(udc, is_active);

	else

		pullup(udc, 0);

	local_irq_restore(flags);

	return 0;

}
@@ -1241,7 +1244,10 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr) 
#undef w_length



	/* pass request up to the gadget driver */

	if (udc->driver)

		status = udc->driver->setup(&udc->gadget, &pkt.r);

	else

		status = -ENODEV;

	if (status < 0) {

stall:

		VDBG("req %02x.%02x protocol STALL; stat %d\n",