From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 5 May 2015 21:56:12 +0000 (+0200)
Subject: usb: ohci: Fix ctrl in messages with a data-len of 0
X-Git-Tag: v2015.07-rc2~285^2~7
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=cae01cb2a9f9a1c4df315e53b063f846d3b364a3;p=u-boot

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>
---

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 15aea98591..02aa7f3927 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -988,7 +988,7 @@ static void td_submit_job(ohci_t *ohci, struct usb_device *dev,
 		}
 
 		/* 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);