Only return EBUSY after we've established we need to schedule a new swap.
(cherry picked from 50a0284a61
commit)
main
parent
cef0f24325
commit
c47ebd9707
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@ -427,11 +427,6 @@ int i915_vblank_swap(DRM_IOCTL_ARGS)
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return DRM_ERR(EINVAL);
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return DRM_ERR(EINVAL);
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}
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}
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if (dev_priv->swaps_pending >= 100) {
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DRM_DEBUG("Too many swaps queued\n");
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return DRM_ERR(EBUSY);
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}
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DRM_COPY_FROM_USER_IOCTL(swap, (drm_i915_vblank_swap_t __user *) data,
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DRM_COPY_FROM_USER_IOCTL(swap, (drm_i915_vblank_swap_t __user *) data,
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sizeof(swap));
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sizeof(swap));
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@ -496,6 +491,11 @@ int i915_vblank_swap(DRM_IOCTL_ARGS)
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spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags);
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spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags);
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if (dev_priv->swaps_pending >= 100) {
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DRM_DEBUG("Too many swaps queued\n");
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return DRM_ERR(EBUSY);
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}
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vbl_swap = drm_calloc(1, sizeof(vbl_swap), DRM_MEM_DRIVER);
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vbl_swap = drm_calloc(1, sizeof(vbl_swap), DRM_MEM_DRIVER);
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if (!vbl_swap) {
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if (!vbl_swap) {
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