e77018f761
During lastclose, we call intel_fbdev_restore_mode() to switch back to the fbcon configuration on return to VT. However, if we have not yet finished the asynchronous fbdev initialisation, the current mode will be invalid and trigger WARNs upon application. Serialise with the outstanding initialisation if the first application exits quickly. Note that to hit this in practice requires using an unregistered async_domain as otherwise modprobe will force a full synchronisation prior to init() completing. v2: Reuse comment explaining the +1 by refactoring the wait on fbdev sync in the previous patch. Reported-by: Gustav Fägerlind <gustav.fagerlind@gmail.com> Reported-by: "Li, Weinan Z" <weinan.z.li@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93580 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1466497015-8509-3-git-send-email-chris@chris-wilson.co.uk |
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