On Mon, May 29, 2017 at 09:04:07PM +0200, Daniel Vetter wrote:
On Mon, May 29, 2017 at 09:02:38PM +0200, Daniel Vetter wrote:
On Sun, May 28, 2017 at 07:16:55PM +0200, Hans de Goede wrote:
Since commit a39be606f99d ("drm: Do a full device unregister when unplugging") drm_unplug_dev has been calling drm_dev_unregister followed by a drm_put_dev when open_count reaches 0. This drm_put_dev calls drm_dev_unregister again. Since drm_dev_unregister is not protected against being called multiple times this leads to havoc.
This commit fixes this by calling drm_dev_unref instead of drm_put_dev.
Fixes: a39be606f99d ("drm: Do a full device unregister when unplugging") Cc: Chris Wilson chris@chris-wilson.co.uk
One more: When fixing a regression pls cc author/reviewer of the offending patch, for the learning. Adding Chris.
I was CC'ed, the ml stripping headers again? -Chris