drm: Pass the user drm_mode_fb_cmd2 as const to .fb_create()
Drivers shouldn't clobber the passed in addfb ioctl parameters.
i915 was doing just that. To prevent it from happening again,
pass the struct around as const, starting all the way from
internal_framebuffer_create().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
index bec07d9..ede9e94 100644
--- a/drivers/gpu/drm/tegra/fb.c
+++ b/drivers/gpu/drm/tegra/fb.c
@@ -92,7 +92,7 @@
};
static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
- struct drm_mode_fb_cmd2 *mode_cmd,
+ const struct drm_mode_fb_cmd2 *mode_cmd,
struct tegra_bo **planes,
unsigned int num_planes)
{
@@ -131,7 +131,7 @@
struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
struct drm_file *file,
- struct drm_mode_fb_cmd2 *cmd)
+ const struct drm_mode_fb_cmd2 *cmd)
{
unsigned int hsub, vsub, i;
struct tegra_bo *planes[4];