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drm/i915: Don't unregister fbdev's fb twice 

Calling drm_framebuffer_unregister_private() in intel_fbdev_destroy() is
superfluous because the framebuffer will subsequently be unregistered by
drm_framebuffer_free() when unreferenced in drm_framebuffer_remove().
The call is a leftover, when it was introduced by commit 362063619c
("drm: revamp framebuffer cleanup interfaces"), struct intel_framebuffer
was still embedded in struct intel_fbdev rather than being a pointer as
it is today, and drm_framebuffer_remove() wasn't used yet.

As a bonus, the ID of the framebuffer is no longer 0 in the debug log:

Before:
    [   39.680874] [drm:drm_mode_object_unreference] OBJ ID: 0 (3)
    [   39.680878] [drm:drm_mode_object_unreference] OBJ ID: 0 (2)
    [   39.680884] [drm:drm_mode_object_unreference] OBJ ID: 0 (1)

After:
    [  102.504649] [drm:drm_mode_object_unreference] OBJ ID: 45 (3)
    [  102.504651] [drm:drm_mode_object_unreference] OBJ ID: 45 (2)
    [  102.504654] [drm:drm_mode_object_unreference] OBJ ID: 45 (1)

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/5031860caad67faa0f1be5965331ef048a311a01.1465383212.git.lukas@wunner.de
This commit is contained in:
Lukas Wunner 2016-06-08 13:15:22 +02:00 committed by Daniel Vetter
parent a8ab5ed5e1
commit 2ce0004cd0
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/i915/intel_fbdev.c
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@ -552,8 +552,6 @@ static void intel_fbdev_destroy(struct drm_device *dev,
drm_fb_helper_fini(&ifbdev->helper);
if (ifbdev->fb) {
drm_framebuffer_unregister_private(&ifbdev->fb->base);
mutex_lock(&dev->struct_mutex);
intel_unpin_fb_obj(&ifbdev->fb->base, BIT(DRM_ROTATE_0));
mutex_unlock(&dev->struct_mutex);