[PATCH] Fix locking bug in lltx path

[Andi Kleen <ak@xxxxxx>]

Thanks to Arjan's spinlock debug kernel for finding it.

This fixes a silly missing spin lock in the relock path. For some 
reason it seems to still work when you don't have spinlock debugging
enabled.

Please apply.

-Andi

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

Fix missing spin lock in lltx path.

Thanks to Arjan's spinlock debug kernel for finding it.

Signed-off-by: Andi Kleen <ak@xxxxxx>

diff -u linux-2.6.9rc1-bk19/net/sched/sch_generic.c-X 
linux-2.6.9rc1-bk19/net/sched/sch_generic.c
--- linux-2.6.9rc1-bk19/net/sched/sch_generic.c-X       2004-09-13 
08:51:46.000000000 +0200
+++ linux-2.6.9rc1-bk19/net/sched/sch_generic.c 2004-09-13 19:22:50.000000000 
+0200
@@ -153,8 +153,10 @@
                                        spin_lock(&dev->queue_lock);
                                        return -1;
                                }
-                               if (ret == -1 && nolock)
+                               if (ret == -1 && nolock) {
+                                       spin_lock(&dev->queue_lock);
                                        goto collision; 
+                               }
                        }
 
                        /* Release the driver */