From 9a6e184c804b33a2c2ea974efcd3c9798d30cb39 Mon Sep 17 00:00:00 2001
From: Li Yang <leoli@freescale.com>
Date: Fri, 13 Feb 2009 16:14:39 +0800
Subject: [PATCH] USB: fsl_usb2_udc: fix potential queue head corruption

Clear next TD field and status field in queue head initialization code
to prevent unpredictable result caused by residue of usb reset.

Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/gadget/fsl_usb2_udc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c
index f3c6703cffda..d8d9a52a44b3 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.c
+++ b/drivers/usb/gadget/fsl_usb2_udc.c
@@ -404,7 +404,10 @@ static void struct_ep_qh_setup(struct fsl_udc *udc, unsigned char ep_num,
 	}
 	if (zlt)
 		tmp |= EP_QUEUE_HEAD_ZLT_SEL;
+
 	p_QH->max_pkt_length = cpu_to_le32(tmp);
+	p_QH->next_dtd_ptr = 1;
+	p_QH->size_ioc_int_sts = 0;
 
 	return;
 }
-- 
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