drm: Make handling of dev_priv->vblank_pipe more robust.

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Initialize it to default value if it hasn't been set by the X server yet.

In i915_vblank_pipe_set(), only update dev_priv->vblank_pipe and call
i915_enable_interrupt() if the argument passed from userspace is valid to avoid
corrupting dev_priv->vblank_pipe on invalid arguments.

Signed-off-by: Dave Airlie <airlied@linux.ie>

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=?utf-8?q?Michel_D=C3=A4nzer?= 2006-10-25 00:08:23 +10:00 • committed by airlied

parent 541f29aad7

commit 5b51694aff

1 changed files with 14 additions and 8 deletions

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drivers/char/drm/i915_irq.c

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