[PATCH] USB: g_printer: fix handling zero-length packet

From: sangsu
Date: Fri Sep 19 2008 - 21:00:49 EST


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<sangsu@xxxxxxxxx>
---
drivers/usb/gadget/printer.c | 3++-
1 files changed, 2 insertion(+), 1 deletions(-)


--- a/drivers/usb/gadget/printer.c 2008-08-12 21:55:39.000000000 -0400
+++ b/drivers/usb/gadget/printer.c 2008-09-19 20:39:44.000000000 -0400
@@ -1264,8 +1264,7 @@
/* 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);
--
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