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authorChris Wilson <chris@chris-wilson.co.uk>2019-06-26 10:43:30 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2019-06-26 21:13:12 +0100
commitc1a495a558536c5745c6449f7c04ba3cf40be9da (patch)
tree84a668dca5b928c1dbfffcef7672734e0a2656a9 /drivers/gpu/drm/drm_mm.c
parent848ed7d54246296f684a4b99546e20d0577aec72 (diff)
downloadlinux-c1a495a558536c5745c6449f7c04ba3cf40be9da.tar.bz2
drm: Allow range of 0 for drm_mm_insert_node_in_range()
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 <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190626094330.3556-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/drm_mm.c')
-rw-r--r--drivers/gpu/drm/drm_mm.c2
1 files changed, 1 insertions, 1 deletions
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;