This is a note to let you know that I've just added the patch titled
usbnet: fix deadlock in resume
to the 3.5-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:
usbnet-fix-deadlock-in-resume.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ab6f148de28261682d300662e87b9477f7efc95b Mon Sep 17 00:00:00 2001
From: Oliver Neukum <[email protected]>
Date: Sun, 26 Aug 2012 20:41:38 +0000
Subject: usbnet: fix deadlock in resume
From: Oliver Neukum <[email protected]>
commit ab6f148de28261682d300662e87b9477f7efc95b upstream.
A usbnet device can share a multifunction device
with a storage device. If the storage device is autoresumed
the usbnet devices also needs to be autoresumed. Allocating
memory with GFP_KERNEL can deadlock in this case.
This should go back into all kernels that have
commit 65841fd5132c3941cdf5df09e70df3ed28323212
That is 3.5
Signed-off-by: Oliver Neukum <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/usb/usbnet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1580,7 +1580,7 @@ int usbnet_resume (struct usb_interface
netif_device_present(dev->net) &&
!timer_pending(&dev->delay) &&
!test_bit(EVENT_RX_HALT, &dev->flags))
- rx_alloc_submit(dev, GFP_KERNEL);
+ rx_alloc_submit(dev, GFP_NOIO);
if (!(dev->txq.qlen >= TX_QLEN(dev)))
netif_tx_wake_all_queues(dev->net);
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/usbnet-fix-deadlock-in-resume.patch
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