Commit 8296345a authored Sep 22, 2008 by SangSu Park Committed by Greg Kroah-Hartman Oct 17, 2008

USB: g_printer: fix handling zero-length packet

g_printer doesn't have to check whether the data size is a multiple of
MaxPacketSize, because device controller driver already make that check.

Signed-off-by: SangSu <Park&lt;sangsu@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent 0b14c388

drivers/usb/gadget/printer.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -1278,8 +1278,7 @@ unknown:
		/* respond with data transfer before status phase? */
		if (value >= 0) {
		req->length = value;
		req->zero = value < wLength
		&& (value % gadget->ep0->maxpacket) == 0;
		req->zero = value < wLength;
		value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
		if (value < 0) {
		DBG(dev, "ep_queue --> %d\n", value);