linux-kernel - [ 056/105] USB: cdc-acm: fix pipe type of write endpoint

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Message-Id: <20121028231554.279263239@decadent.org.uk>
Date:	Sun, 28 Oct 2012 23:16:32 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Ming Lei <ming.lei@...onical.com>,
	Oliver Neukum <oneukum@...e.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [ 056/105] USB: cdc-acm: fix pipe type of write endpoint

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ming Lei <ming.lei@...onical.com>

commit c5211187f7ff8e8dbff4ebf7c011ac4c0ffe319c upstream.

If the write endpoint is interrupt type, usb_sndintpipe() should
be passed to usb_fill_int_urb() instead of usb_sndbulkpipe().

Cc: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Ming Lei <ming.lei@...onical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/class/cdc-acm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 981f213..572f4e7 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1233,7 +1233,7 @@ made_compressed_probe:
 
 		if (usb_endpoint_xfer_int(epwrite))
 			usb_fill_int_urb(snd->urb, usb_dev,
-				usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
+				usb_sndintpipe(usb_dev, epwrite->bEndpointAddress),
 				NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval);
 		else
 			usb_fill_bulk_urb(snd->urb, usb_dev,


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