drm/i915: Don't leak primary/cursor planes on crtc init failure

Call intel_plane_destroy() instead of drm_plane_cleanup() so that we
also free the plane struct itself when bailing out of the crtc init.

And make intel_plane_destroy() NULL tolerant to avoid having to check
for it in the caller.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464371966-15190-5-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 476d76971817..ada0198510d7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14157,9 +14157,11 @@ static void intel_finish_crtc_commit(struct drm_crtc *crtc,
  */
 void intel_plane_destroy(struct drm_plane *plane)
 {
-        struct intel_plane *intel_plane = to_intel_plane(plane);
+        if (!plane)
+                return;
+
         drm_plane_cleanup(plane);
-        kfree(intel_plane);
+        kfree(to_intel_plane(plane));
 }
 
 const struct drm_plane_funcs intel_plane_funcs = {
@@ -14512,10 +14514,8 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
         return;
 
 fail:
-        if (primary)
-                drm_plane_cleanup(primary);
-        if (cursor)
-                drm_plane_cleanup(cursor);
+        intel_plane_destroy(primary);
+        intel_plane_destroy(cursor);
         kfree(crtc_state);
         kfree(intel_crtc);
 }