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authorSangSu Park <sangsu@gmail.com>2008-09-22 15:41:15 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-17 14:40:56 -0700
commit8296345a35551414b07419f4c9223734c1fc5437 (patch)
treeca1607143d3ef663f77b9520de9d992df6f0f58e
parent0b14c3881d4b91272b779f4037e263d392de058f (diff)
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<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>
-rw-r--r--drivers/usb/gadget/printer.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 2b3b9e1dd2e..00b7ed5013a 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -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);