Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "This looks bigger than it is, as one of the nouveau firmware fixes
  ("drm/gf100-/gr: report class data to host on fwmthd failure")
  regenerates a bunch of the firmware files after changing the assembly
  by a few lines, without that, its more of a

    36 files changed, 370 insertions(+), 129 deletions(-)

  It contains some vt.c fixes acked by Greg, for rare hard hangs on i915
  loading, that also fixes hangs on reload and spurious register write
  errors.

  drm core: one fix for uninit memory

  nouveau: displayport rework caused a few regressions, Ben has been
     fixing them as the appear, along with some other fixes

  radeon: pageflipping regression fix, deep color fix, mode validation
     fixes

  i915: fbc disable, vga console kick off, backlight fix, divide-by-zero
     fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
  drm: fix uninitialized acquire_ctx fields (v2)
  drm/radeon: Fix radeon_irq_kms_pflip_irq_get/put() imbalance
  Revert "drm/radeon: remove drm_vblank_get|put from pflip handling"
  drm/radeon: improve dvi_mode_valid
  drm/radeon: update mode_valid testing for DP
  drm/radeon: Use dce5/6 hdmi deep color clock setup also on dce8+
  drm/nouveau/disp: fix oops in destructor with headless cards
  drm/gf117/i2c: no aux channels on this chipset
  drm/nouveau/doc: update the thermal documentation
  drm/nouveau/pwr: fix typo in fifo wrap handling
  drm/nv50/disp: fix a potential oops in supervisor handling
  drm/nouveau/disp/dp: don't touch link config after success
  drm/nouveau/kms: reference vblank for crtc during pageflip.
  drm/gk104/fb/ram: fixups from an earlier search+replace
  drm/nv50/gr: remove an unneeded write while initialising PGRAPH
  drm/nv50/gr: fix overlap while zeroing zcull regions
  drm/gf100-/gr: report class data to host on fwmthd failure
  drm/gk104/ibus: increase various random timeouts
  drm/gk104/clk: only touch divider for mode we'll be using
  drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout.
  ...

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c
index 7c2497dea1e9..0dc57d5ecd10 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -64,6 +64,7 @@
 void drm_modeset_acquire_init(struct drm_modeset_acquire_ctx *ctx,
 		uint32_t flags)
 {
+	memset(ctx, 0, sizeof(*ctx));
 	ww_acquire_init(&ctx->ww_ctx, &crtc_ww_class);
 	INIT_LIST_HEAD(&ctx->locked);
 }