i915_gem_execbuffer_wait_for_flips(struct intel_ring_buffer *ring, u32 flips)
{
	u32 plane, flip_mask;
	int ret;

	/* Check for any pending flips. As we only maintain a flip queue depth
	 * of 1, we can simply insert a WAIT for the next display flip prior
	 * to executing the batch and avoid stalling the CPU.
	 */

	for (plane = 0; flips >> plane; plane++) {
		if (((flips >> plane) & 1) == 0)
			continue;

		if (plane)
			flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
		else
			flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;

		ret = intel_ring_begin(ring, 2);
		if (ret)
			return ret;

		intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
		intel_ring_emit(ring, MI_NOOP);
		intel_ring_advance(ring);
	}

	return 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.