diff options
| author | David S. Miller <davem@davemloft.net> | 2008-09-09 03:59:05 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-09-09 03:59:05 +0400 |
| commit | 17dce5dfe38ae2fb359b61e855f5d8a3a8b7892b (patch) | |
| tree | 88bb1fcf84f9ebfa4299c9a8dcd9e6330b358446 /drivers/gpu/drm/drm_irq.c | |
| parent | 712d6954e3998d0de2840d8130941e8042541246 (diff) | |
| parent | 82a28c794f27aac17d7a3ebd7f14d731a11a5532 (diff) | |
| download | linux-17dce5dfe38ae2fb359b61e855f5d8a3a8b7892b.tar.xz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
net/mac80211/mlme.c
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 089c015c01d1..53f0e5af1cc8 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -400,27 +400,31 @@ static void drm_locked_tasklet_func(unsigned long data) { struct drm_device *dev = (struct drm_device *)data; unsigned long irqflags; - + void (*tasklet_func)(struct drm_device *); + spin_lock_irqsave(&dev->tasklet_lock, irqflags); + tasklet_func = dev->locked_tasklet_func; + spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - if (!dev->locked_tasklet_func || + if (!tasklet_func || !drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); return; } dev->lock.lock_time = jiffies; atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); - dev->locked_tasklet_func(dev); + spin_lock_irqsave(&dev->tasklet_lock, irqflags); + tasklet_func = dev->locked_tasklet_func; + dev->locked_tasklet_func = NULL; + spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); + + if (tasklet_func != NULL) + tasklet_func(dev); drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); - - dev->locked_tasklet_func = NULL; - - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); } /** |