drm: i915: Fix 'sequence has passed' condition in i915_vblank_swap().

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

diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index e9e46c4..df28bc1 100644 (file)
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -439,7 +439,7 @@ int i915_vblank_swap(DRM_IOCTL_ARGS)
                swap.sequence += curseq;
                break;
        case _DRM_VBLANK_ABSOLUTE:
-               if ((curseq - swap.sequence) > (1<<23)) {
+               if ((curseq - swap.sequence) <= (1<<23)) {
                        spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags);
                        DRM_DEBUG("Missed target sequence\n");
                        return DRM_ERR(EINVAL);