From: Swaminathan S <swami.iyer@ti.com>
Date: Sun, 25 Jan 2009 01:57:37 +0000 (-0800)
Subject: USB: musb cppi dma fix
X-Git-Tag: v3.0~10793^2~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=191b776616838f035c2fe7eecc882b5c1f134353;p=platform%2Fkernel%2Flinux-amlogic.git

USB: musb cppi dma fix

Initializes the actual_len field to 0 before every DMA transaction.

Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index d8d5345..569ef0f 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -995,6 +995,7 @@ static int cppi_channel_program(struct dma_channel *ch,
 	cppi_ch->offset = 0;
 	cppi_ch->maxpacket = maxpacket;
 	cppi_ch->buf_len = len;
+	cppi_ch->channel.actual_len = 0;
 
 	/* TX channel? or RX? */
 	if (cppi_ch->transmit)