The plane reset handler frees the plane state and allocates a new
default state, but when doing so attempt to free the plane state using
the base plane state pointer instead of casting it to the
driver-specific state object that has been allocated. Fix it by using
the omap_plane_atomic_destroy_state() function to destroy the plane
state instead of duplicating the code.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/omap_plane.c | 53 ++++++++++++++++++------------------
1 file changed, 26 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c
b/drivers/gpu/drm/omapdrm/omap_plane.c
index 3054bda72688..11d406b160e1 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -188,33 +188,6 @@ static const struct drm_plane_helper_funcs
omap_plane_helper_funcs = {
.atomic_disable = omap_plane_atomic_disable,
};
-static void omap_plane_reset(struct drm_plane *plane)
-{
- struct omap_plane *omap_plane = to_omap_plane(plane);
- struct omap_plane_state *omap_state;
-
- if (plane->state && plane->state->fb)
- drm_framebuffer_unreference(plane->state->fb);
-
- kfree(plane->state);
- plane->state = NULL;
-
- omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
- if (omap_state == NULL)
- return;
-
- /*
- * Set defaults depending on whether we are a primary or overlay
- * plane.
- */
- omap_state->zorder = plane->type == DRM_PLANE_TYPE_PRIMARY
- ? 0 : omap_plane->id;
- omap_state->base.rotation = BIT(DRM_ROTATE_0);
-
- plane->state = &omap_state->base;
- plane->state->plane = plane;
-}
-
static void omap_plane_destroy(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
@@ -270,6 +243,32 @@ static void omap_plane_atomic_destroy_state(struct
drm_plane *plane,
kfree(to_omap_plane_state(state));
}
+static void omap_plane_reset(struct drm_plane *plane)
+{
+ struct omap_plane *omap_plane = to_omap_plane(plane);
+ struct omap_plane_state *omap_state;
+
+ if (plane->state) {
+ omap_plane_atomic_destroy_state(plane, plane->state);
+ plane->state = NULL;
+ }
+
+ omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
+ if (omap_state == NULL)
+ return;
+
+ /*
+ * Set defaults depending on whether we are a primary or overlay
+ * plane.
+ */
+ omap_state->zorder = plane->type == DRM_PLANE_TYPE_PRIMARY
+ ? 0 : omap_plane->id;
+ omap_state->base.rotation = BIT(DRM_ROTATE_0);
+
+ plane->state = &omap_state->base;
+ plane->state->plane = plane;
+}
+
static int omap_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
--
2.4.10
