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drm/nv50-/fb: use dma_mapping_error() to check dma_map_page() result 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-08-05 22:03:49 +10:00
parent 9cba5efab5
commit 838f6fe7e4
2 changed files with 3 additions and 3 deletions
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4
drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c
View File

@ -253,8 +253,8 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
priv->r100c08 = dma_map_page(nv_device_base(device),
priv->r100c08_page, 0, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (!priv->r100c08)
nv_warn(priv, "failed 0x100c08 page map\n");
if (dma_mapping_error(nv_device_base(device), priv->r100c08))
return -EFAULT;
} else {
nv_warn(priv, "failed 0x100c08 page alloc\n");
}

2
drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
View File

@ -97,7 +97,7 @@ nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
priv->r100c10 = dma_map_page(nv_device_base(device),
priv->r100c10_page, 0, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (!priv->r100c10)
if (dma_mapping_error(nv_device_base(device), priv->r100c10))
return -EFAULT;
}