Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[pandora-kernel.git] / drivers / gpu / drm / drm_vm.c

diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 3778360..2c3fcbd 100644 (file)
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -138,7 +138,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
                                break;
                }
 
-               if (!agpmem)
+               if (&agpmem->head == &dev->agp->memory)
                        goto vm_fault_error;
 
                /*
@@ -433,15 +433,7 @@ static void drm_vm_open(struct vm_area_struct *vma)
        mutex_unlock(&dev->struct_mutex);
 }
 
-/**
- * \c close method for all virtual memory types.
- *
- * \param vma virtual memory area.
- *
- * Search the \p vma private data entry in drm_device::vmalist, unlink it, and
- * free it.
- */
-static void drm_vm_close(struct vm_area_struct *vma)
+void drm_vm_close_locked(struct vm_area_struct *vma)
 {
        struct drm_file *priv = vma->vm_file->private_data;
        struct drm_device *dev = priv->minor->dev;
@@ -451,7 +443,6 @@ static void drm_vm_close(struct vm_area_struct *vma)
                  vma->vm_start, vma->vm_end - vma->vm_start);
        atomic_dec(&dev->vma_count);
 
-       mutex_lock(&dev->struct_mutex);
        list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
                if (pt->vma == vma) {
                        list_del(&pt->head);
@@ -459,6 +450,23 @@ static void drm_vm_close(struct vm_area_struct *vma)
                        break;
                }
        }
+}
+
+/**
+ * \c close method for all virtual memory types.
+ *
+ * \param vma virtual memory area.
+ *
+ * Search the \p vma private data entry in drm_device::vmalist, unlink it, and
+ * free it.
+ */
+static void drm_vm_close(struct vm_area_struct *vma)
+{
+       struct drm_file *priv = vma->vm_file->private_data;
+       struct drm_device *dev = priv->minor->dev;
+
+       mutex_lock(&dev->struct_mutex);
+       drm_vm_close_locked(vma);
        mutex_unlock(&dev->struct_mutex);
 }
 
@@ -515,14 +523,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
        return 0;
 }
 
-resource_size_t drm_core_get_map_ofs(struct drm_local_map * map)
-{
-       return map->offset;
-}
-
-EXPORT_SYMBOL(drm_core_get_map_ofs);
-
-resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
+static resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
 {
 #ifdef __alpha__
        return dev->hose->dense_mem_base - dev->hose->mem_space->start;
@@ -531,8 +532,6 @@ resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
 #endif
 }
 
-EXPORT_SYMBOL(drm_core_get_reg_ofs);
-
 /**
  * mmap DMA memory.
  *
@@ -619,7 +618,7 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 #endif
        case _DRM_FRAME_BUFFER:
        case _DRM_REGISTERS:
-               offset = dev->driver->get_reg_ofs(dev);
+               offset = drm_core_get_reg_ofs(dev);
                vma->vm_flags |= VM_IO; /* not in core dump */
                vma->vm_page_prot = drm_io_prot(map->type, vma);
 #if !defined(__arm__)