drm/i915: Fix a typo in vgt_balloon_space()

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.

Fixes: 625d988acc28 ("drm/i915: Extract reserving space in the GTT to a helper")
Cc: Joonas Lahtinen <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Zhiyuan Lv <[email protected]>
Signed-off-by: Zhenyu Wang <[email protected]>
Signed-off-by: Zhi Wang <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Chris Wilson <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>

diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index f1ad4fbb5ba7226d36b4667cf4e8543d3b161709..d0abfd08a01c38e221f15301da8c8130ff5d8d0a 100644 (file)
--- 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",