linux-kernel - [ 059/167] [PATCH] usb: dwc3: ep0: increment "actual" on bounced ep0 case

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20120509055038.051604000@decadent.org.uk>
Date:	Wed, 09 May 2012 06:51:28 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [ 059/167] [PATCH] usb: dwc3: ep0: increment "actual" on bounced ep0 case

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

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

From: Felipe Balbi <balbi@...com>

commit cd423dd3634a5232a3019eb372b144619a61cd16 upstream.

due to a HW limitation we have a bounce buffer for ep0
out transfers which are not aligned with MaxPacketSize.

On such case we were not increment r->actual as we should.

This patch fixes that mistake.

Signed-off-by: Felipe Balbi <balbi@...com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/dwc3/ep0.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -583,9 +583,10 @@ static void dwc3_ep0_complete_data(struc
 		dwc->ep0_bounced = false;
 	} else {
 		transferred = ur->length - trb.length;
-		ur->actual += transferred;
 	}
 
+	ur->actual += transferred;
+
 	if ((epnum & 1) && ur->actual < ur->length) {
 		/* for some reason we did not get everything out */
 


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/