[Intel-gfx] [PATCH] drm/i915: Fix a typo in vgt_balloon_space()

[Zhi Wang]

From: Zhenyu Wang <zhenyuw at linux.intel.com>

Commit 625d988acc28 ("drm/i915: Extract reserving space in the GTT to a
helper") introduces this typo which can cause a driver loading failure
in Linux GVT-g guest.

Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Zhiyuan Lv <zhiyuan.lv at intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang at intel.com>
---
 drivers/gpu/drm/i915/i915_vgpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index f1ad4fb..d0abfd0 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -122,7 +122,7 @@ static int vgt_balloon_space(struct i915_ggtt *ggtt,
 {
 	unsigned long size = end - start;
 
-	if (start <= end)
+	if (start >= end)
 		return -EINVAL;
 
 	DRM_INFO("balloon space: range [ 0x%lx - 0x%lx ] %lu KiB.\n",
-- 
1.9.1