drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree

This patch removes special case of last element and loops from idx to 0.

Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/drm_buffer.c b/drivers/gpu/drm/drm_buffer.c
index 0406110f83edd2ac3f607fe575c8e7b6c491e88a..86a4a4a60afcd79a052856275690ac088a4ff7c2 100644 (file)
--- a/drivers/gpu/drm/drm_buffer.c
+++ b/drivers/gpu/drm/drm_buffer.c
@@ -80,11 +80,7 @@ int drm_buffer_alloc(struct drm_buffer **buf, int size)
 
 error_out:
 
-       /* Only last element can be null pointer so check for it first. */
-       if ((*buf)->data[idx])
-               kfree((*buf)->data[idx]);
-
-       for (--idx; idx >= 0; --idx)
+       for (; idx >= 0; --idx)
                kfree((*buf)->data[idx]);
 
        kfree(*buf);