We gracefully handle the caller specifying a zero range, so don't force
them to special case that condition if it naturally falls out of their
setup. What we don't check is if the end < start, so keep that as an
assert for an illegal call.

Signed-off-by: Chris Wilson <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Daniele Ceraolo Spurio <[email protected]>
Cc: Daniel Vetter <[email protected]>
---
 drivers/gpu/drm/drm_mm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 9a59865ce574..4581c5387372 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -472,7 +472,7 @@ int drm_mm_insert_node_in_range(struct drm_mm * const mm,
        u64 remainder_mask;
        bool once;
 
-       DRM_MM_BUG_ON(range_start >= range_end);
+       DRM_MM_BUG_ON(range_start > range_end);
 
        if (unlikely(size == 0 || range_end - range_start < size))
                return -ENOSPC;
-- 
2.20.1

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