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drm/i915: Call drm_vblank_post_modeset() on error paths.

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Ensure that the drm_vblank_pre_modeset() is always balanced by
drm_vblank_post_modeset() within intel_crtc_mode_set().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Chris Wilson 2009-06-06 09:45:59 +01:00 committed by Eric Anholt
parent 5f26a2c7ad
commit 1f803ee5ce
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/i915/intel_display.c
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@ -1598,6 +1598,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock);
if (!ok) {
DRM_ERROR("Couldn't find PLL settings for mode!\n");
drm_vblank_post_modeset(dev, pipe);
return -EINVAL;
}
@ -1858,12 +1859,9 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
/* Flush the plane changes */
ret = intel_pipe_set_base(crtc, x, y, old_fb);
if (ret != 0)
return ret;
drm_vblank_post_modeset(dev, pipe);
return 0;
return ret;
}
/** Loads the palette/gamma unit for the CRTC with the prepared values */