With the previous two changes it doesn't protect anything any more.
v2: Use _unlocked unreference variant.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/vgem/vgem_drv.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 1a609347236b..807a24d3c0a8 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -103,12 +103,8 @@ static int vgem_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (page_offset > num_pages)
return VM_FAULT_SIGBUS;
- mutex_lock(&dev->struct_mutex);
-
ret = vm_insert_page(vma, (unsigned long)vmf->virtual_address,
obj->pages[page_offset]);
-
- mutex_unlock(&dev->struct_mutex);
switch (ret) {
case 0:
return VM_FAULT_NOPAGE;
@@ -205,12 +201,9 @@ int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
int ret = 0;
struct drm_gem_object *obj;
- mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(dev, file, handle);
- if (!obj) {
- ret = -ENOENT;
- goto unlock;
- }
+ if (!obj)
+ return -ENOENT;
ret = drm_gem_create_mmap_offset(obj);
if (ret)
@@ -223,9 +216,8 @@ int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
*offset = drm_vma_node_offset_addr(&obj->vma_node);
unref:
- drm_gem_object_unreference(obj);
-unlock:
- mutex_unlock(&dev->struct_mutex);
+ drm_gem_object_unreference_unlocked(obj);
+
return ret;
}
--
2.5.1
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