This is a note to let you know that I've just added the patch titled
[media] lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3 in
interrupt urb
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
lmedm04-fix-usb_submit_urb-bogus-urb-xfer-pipe-1-type-3-in-interrupt-urb.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 15e1ce33182d1d5dbd8efe8d382b9352dc857527 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <[email protected]>
Date: Fri, 2 Jan 2015 10:56:28 -0300
Subject: [media] lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3
in interrupt urb
From: Malcolm Priestley <[email protected]>
commit 15e1ce33182d1d5dbd8efe8d382b9352dc857527 upstream.
A quirk of some older firmwares that report endpoint pipe type as PIPE_BULK
but the endpoint otheriwse functions as interrupt.
Check if usb_endpoint_type is USB_ENDPOINT_XFER_BULK and set as usb_rcvbulkpipe.
Signed-off-by: Malcolm Priestley <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/media/usb/dvb-usb-v2/lmedm04.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -354,6 +354,7 @@ static int lme2510_int_read(struct dvb_u
{
struct dvb_usb_device *d = adap_to_d(adap);
struct lme2510_state *lme_int = adap_to_priv(adap);
+ struct usb_host_endpoint *ep;
lme_int->lme_urb = usb_alloc_urb(0, GFP_ATOMIC);
@@ -375,6 +376,12 @@ static int lme2510_int_read(struct dvb_u
adap,
8);
+ /* Quirk of pipe reporting PIPE_BULK but behaves as interrupt */
+ ep = usb_pipe_endpoint(d->udev, lme_int->lme_urb->pipe);
+
+ if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
+ lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa),
+
lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
Patches currently in stable-queue which might be from [email protected] are
queue-3.18/lmedm04-increase-interupt-due-time-to-200-msec.patch
queue-3.18/lmedm04-fix-usb_submit_urb-bogus-urb-xfer-pipe-1-type-3-in-interrupt-urb.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
