drm: fix trivial coding errors

Correct function storage class, and correct assignment type.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_buffer.c b/drivers/gpu/drm/drm_buffer.c
index 55d03ed050006c3de3a2b7470c4ededeafbc8871..529a0dbe9fc65960e62bc7840320754fb61393e8 100644 (file)
--- a/drivers/gpu/drm/drm_buffer.c
+++ b/drivers/gpu/drm/drm_buffer.c
@@ -98,8 +98,8 @@ EXPORT_SYMBOL(drm_buffer_alloc);
  *   user_data: A pointer the data that is copied to the buffer.
  *   size: The Number of bytes to copy.
  */
-extern int drm_buffer_copy_from_user(struct drm_buffer *buf,
-               void __user *user_data, int size)
+int drm_buffer_copy_from_user(struct drm_buffer *buf,
+                             void __user *user_data, int size)
 {
        int nr_pages = size / PAGE_SIZE + 1;
        int idx;
@@ -163,7 +163,7 @@ void *drm_buffer_read_object(struct drm_buffer *buf,
 {
        int idx = drm_buffer_index(buf);
        int page = drm_buffer_page(buf);
-       void *obj = 0;
+       void *obj = NULL;
 
        if (idx + objsize <= PAGE_SIZE) {
                obj = &buf->data[page][idx];