diff options
Diffstat (limited to 'drivers/staging/android/ion/ion.c')
-rw-r--r-- | drivers/staging/android/ion/ion.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index e1fb86530c96..7d402334a546 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -40,6 +40,9 @@ #include "ion.h" +static struct ion_device *internal_dev; +static int heap_id = 0; + bool ion_buffer_cached(struct ion_buffer *buffer) { return !!(buffer->flags & ION_FLAG_CACHED); @@ -1198,9 +1201,10 @@ static int debug_shrink_get(void *data, u64 *val) DEFINE_SIMPLE_ATTRIBUTE(debug_shrink_fops, debug_shrink_get, debug_shrink_set, "%llu\n"); -void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) +void ion_device_add_heap(struct ion_heap *heap) { struct dentry *debug_file; + struct ion_device *dev = internal_dev; if (!heap->ops->allocate || !heap->ops->free) pr_err("%s: can not add heap with invalid ops struct.\n", @@ -1217,6 +1221,7 @@ void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) heap->dev = dev; down_write(&dev->lock); + heap->id = heap_id++; /* * use negative heap->id to reverse the priority -- when traversing * the list later attempt higher id numbers first @@ -1256,14 +1261,14 @@ void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) } EXPORT_SYMBOL(ion_device_add_heap); -struct ion_device *ion_device_create(void) +int ion_device_create(void) { struct ion_device *idev; int ret; idev = kzalloc(sizeof(*idev), GFP_KERNEL); if (!idev) - return ERR_PTR(-ENOMEM); + return -ENOMEM; idev->dev.minor = MISC_DYNAMIC_MINOR; idev->dev.name = "ion"; @@ -1273,7 +1278,7 @@ struct ion_device *ion_device_create(void) if (ret) { pr_err("ion: failed to register misc device.\n"); kfree(idev); - return ERR_PTR(ret); + return ret; } idev->debug_root = debugfs_create_dir("ion", NULL); @@ -1292,7 +1297,6 @@ struct ion_device *ion_device_create(void) pr_err("ion: failed to create debugfs clients directory.\n"); debugfs_done: - idev->buffers = RB_ROOT; mutex_init(&idev->buffer_lock); init_rwsem(&idev->lock); @@ -1300,15 +1304,7 @@ debugfs_done: idev->clients = RB_ROOT; ion_root_client = &idev->clients; mutex_init(&debugfs_mutex); - return idev; -} -EXPORT_SYMBOL(ion_device_create); - -void ion_device_destroy(struct ion_device *dev) -{ - misc_deregister(&dev->dev); - debugfs_remove_recursive(dev->debug_root); - /* XXX need to free the heaps and clients ? */ - kfree(dev); + internal_dev = idev; + return 0; } -EXPORT_SYMBOL(ion_device_destroy); +subsys_initcall(ion_device_create); |