commit cae01cb2a9f9a1c4df315e53b063f846d3b364a3
author Hans de Goede <hdegoede@redhat.com> Tue May 05 23:56:12 2015 +0200
committer Simon Glass <sjg@chromium.org> Wed May 06 12:48:35 2015 -0600
tree 5e3949830449a9aa50180cf57142576e8612865d
parent 6651c140659a300fa2bebf0de1c58832c123b1f2

usb: ohci: Fix ctrl in messages with a data-len of 0

Fix taken from the Linux kernel ohci driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Marek Vasut <marex@denx.de>

drivers/usb/host/ohci-hcd.c

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 15aea98..02aa7f3 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -988,7 +988,7 @@
 		}
 
 		/* Status phase */
-		info = usb_pipeout(pipe)?
+		info = (usb_pipeout(pipe) || data_len == 0) ?
 			TD_CC | TD_DP_IN | TD_T_DATA1:
 			TD_CC | TD_DP_OUT | TD_T_DATA1;
 		td_fill(ohci, info, data, 0, dev, cnt++, urb);