dax/hmem: Convey the dax range via memregion_info()

[linux-stable] / drivers / dax / hmem / hmem.c

diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index c7351e0dc8ff9113b439a73911d1dc3ec83062b5..5025a8c9850bab8fee2779fb99bed6269dc7a8d0 100644 (file)
--- a/drivers/dax/hmem/hmem.c
+++ b/drivers/dax/hmem/hmem.c
@@ -15,25 +15,17 @@ static int dax_hmem_probe(struct platform_device *pdev)
        struct memregion_info *mri;
        struct dev_dax_data data;
        struct dev_dax *dev_dax;
-       struct resource *res;
-       struct range range;
-
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -ENOMEM;
 
        mri = dev->platform_data;
-       range.start = res->start;
-       range.end = res->end;
-       dax_region = alloc_dax_region(dev, pdev->id, &range, mri->target_node,
-                       PMD_SIZE, 0);
+       dax_region = alloc_dax_region(dev, pdev->id, &mri->range,
+                                     mri->target_node, PMD_SIZE, 0);
        if (!dax_region)
                return -ENOMEM;
 
        data = (struct dev_dax_data) {
                .dax_region = dax_region,
                .id = -1,
-               .size = region_idle ? 0 : resource_size(res),
+               .size = region_idle ? 0 : range_len(&mri->range),
        };
        dev_dax = devm_create_dev_dax(&data);
        if (IS_ERR(dev_dax))