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radeon: Only destroy fbdev framebuffer if it was initialized

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Fixes crash when trying to unload the radeon module before the fbdev
framebuffer was initialized, which can happen since the DRM fbdev helper
code supports deferred setup.

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2017-09-11 17:09:17 +09:00 committed by Alex Deucher
parent a072c5f896
commit e97f12f359
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/radeon/radeon_fb.c
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@ -322,10 +322,10 @@ static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfb
if (rfb->obj) {
radeonfb_destroy_pinned_object(rfb->obj);
rfb->obj = NULL;
drm_framebuffer_unregister_private(&rfb->base);
drm_framebuffer_cleanup(&rfb->base);
}
drm_fb_helper_fini(&rfbdev->helper);
drm_framebuffer_unregister_private(&rfb->base);
drm_framebuffer_cleanup(&rfb->base);
return 0;
}