Linus Torvalds 27667f4744 i915: temporary fix for DP MST docking station NULL pointer dereference ... Ted Ts'o reports that his Lenovo T540p ThinkPad crashes at boot if attached to the docking station. This is a regression that he was able to bisect to commit 8c7b5ccb72: "drm/i915: Use atomic helpers for computing changed flags:" The reason seems to be the new call to drm_atomic_helper_check_modeset() added to intel_modeset_compute_config(), which in turn calls update_connector_routing(), and somehow ends up picking a NULL crtc for the connector state, causing the subsequent drm_crtc_index() to OOPS. Daniel Vetter says that the fundamental issue seems to be confusion in the encoder selection, and this isn't the right fix, but while he chases down the proper fix, this at least avoids the NULL pointer dereference and makes Ted's docking station work again. Reported-bisected-and-tested-by: Theodore Ts'o <tytso@mit.edu> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Mani Nikula <jani.nikula@linux.intel.com> Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-08-02 11:02:16 -07:00
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drm	i915: temporary fix for DP MST docking station NULL pointer dereference	2015-08-02 11:02:16 -07:00
host1x	gpu: host1x: Export host1x_syncpt_read()	2015-04-02 18:46:20 +02:00
ipu-v3	GPU: ipu: fix lockup caused by pending chained interrupts	2015-07-10 11:02:46 +02:00
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