drm/ttm: fix, avoid iomapping system memory

[mv-sheeva.git] / drivers / gpu / drm / ttm / ttm_bo_util.c

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index a37a94872a14c888001356ca45ea5832881397a0..13012a1f1486c1bf4cad58608068f27b667b2335 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -113,7 +113,7 @@ int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem,
 
        *virtual = NULL;
        ret = ttm_mem_io_reserve(bdev, mem);
-       if (ret)
+       if (ret || !mem->bus.is_iomem)
                return ret;
 
        if (mem->bus.addr) {