i915_dma_map_single relies on dma_mapping_error, which returns positive
error codes. Found by static checker.
Introduced by commit 678d96fbb3b5995a2fdff2bca5e1ab4a40b7e968
("drm/i915: Track GEN6 page table usage").
Cc: Dan Carpenter <dan.carpen...@oracle.com>
Cc: Mika Kuoppala <mika.kuopp...@intel.com>
Signed-off-by: Michel Thierry <michel.thie...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 645c363..79ade6f 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -348,7 +348,7 @@ static struct i915_page_table_entry *alloc_pt_single(struct
drm_device *dev)
goto fail_page;
ret = i915_dma_map_single(pt, dev);
- if (ret)
+ if (ret != 0)
goto fail_dma;
return pt;
--
2.1.1
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