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path: root/drivers/gpu/drm/gma500/gem.c
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Diffstat (limited to 'drivers/gpu/drm/gma500/gem.c')
-rw-r--r--drivers/gpu/drm/gma500/gem.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c
index e3bdc8b1c..506224b3a 100644
--- a/drivers/gpu/drm/gma500/gem.c
+++ b/drivers/gpu/drm/gma500/gem.c
@@ -62,15 +62,10 @@ int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
int ret = 0;
struct drm_gem_object *obj;
- mutex_lock(&dev->struct_mutex);
-
/* GEM does all our handle to object mapping */
obj = drm_gem_object_lookup(dev, file, handle);
- if (obj == NULL) {
- ret = -ENOENT;
- goto unlock;
- }
- /* What validation is needed here ? */
+ if (obj == NULL)
+ return -ENOENT;
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
@@ -78,9 +73,7 @@ int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
goto out;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
out:
- drm_gem_object_unreference(obj);
-unlock:
- mutex_unlock(&dev->struct_mutex);
+ drm_gem_object_unreference_unlocked(obj);
return ret;
}
@@ -189,7 +182,7 @@ int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
/* Make sure we don't parallel update on a fault, nor move or remove
something from beneath our feet */
- mutex_lock(&dev->struct_mutex);
+ mutex_lock(&dev_priv->mmap_mutex);
/* For now the mmap pins the object and it stays pinned. As things
stand that will do us no harm */
@@ -215,7 +208,7 @@ int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
ret = vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
fail:
- mutex_unlock(&dev->struct_mutex);
+ mutex_unlock(&dev_priv->mmap_mutex);
switch (ret) {
case 0:
case -ERESTARTSYS: