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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00
On Wed, 2005-06-08 at 13:28 +0200, Ingo Molnar wrote:

> - fix race in usbnet.c (Eugeny S. Mints)

--- linux/drivers/usb/net/usbnet.c.orig
+++ linux/drivers/usb/net/usbnet.c
@@ -3490,6 +3490,8 @@ static void tx_complete (struct urb *urb

urb->dev = NULL;
entry->state = tx_done;
+ spin_lock_rt(&dev->txq.lock);
+ spin_unlock_rt(&dev->txq.lock);
defer_bh (dev, skb);

What are these lines fixing again ? It seems rather odd that locking and
then unlocking a mutex could fix anything ..


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