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| author |   Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
| commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
| tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /drivers/gpu/drm/drm_vm.c | |
| parent | uprobes/core: Optimize probe hits with the help of a counter (diff) | |
| parent | Merge tag 'v3.4-rc2' into perf/core (diff) | |
| download | linux-dev-6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e.tar.xz linux-dev-6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e.zip | |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/drm_vm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vm.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index 8c03eaf41448..149561818349 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -519,7 +519,6 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) vma->vm_flags |= VM_RESERVED; /* Don't swap */ vma->vm_flags |= VM_DONTEXPAND; - vma->vm_file = filp; /* Needed for drm_vm_open() */ drm_vm_open_locked(vma); return 0; } @@ -671,7 +670,6 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) vma->vm_flags |= VM_RESERVED; /* Don't swap */ vma->vm_flags |= VM_DONTEXPAND; - vma->vm_file = filp; /* Needed for drm_vm_open() */ drm_vm_open_locked(vma); return 0; } @@ -682,6 +680,9 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) struct drm_device *dev = priv->minor->dev; int ret; + if (drm_device_is_unplugged(dev)) + return -ENODEV; + mutex_lock(&dev->struct_mutex); ret = drm_mmap_locked(filp, vma); mutex_unlock(&dev->struct_mutex); |