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path: root/drivers/iommu/shmobile-ipmmu.c
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Diffstat (limited to 'drivers/iommu/shmobile-ipmmu.c')
-rw-r--r--drivers/iommu/shmobile-ipmmu.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/iommu/shmobile-ipmmu.c b/drivers/iommu/shmobile-ipmmu.c
index e3bc2e19b6dd..bd97adecb1fd 100644
--- a/drivers/iommu/shmobile-ipmmu.c
+++ b/drivers/iommu/shmobile-ipmmu.c
@@ -94,11 +94,6 @@ static int ipmmu_probe(struct platform_device *pdev)
struct resource *res;
struct shmobile_ipmmu_platform_data *pdata = pdev->dev.platform_data;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "cannot get platform resources\n");
- return -ENOENT;
- }
ipmmu = devm_kzalloc(&pdev->dev, sizeof(*ipmmu), GFP_KERNEL);
if (!ipmmu) {
dev_err(&pdev->dev, "cannot allocate device data\n");
@@ -106,19 +101,18 @@ static int ipmmu_probe(struct platform_device *pdev)
}
spin_lock_init(&ipmmu->flush_lock);
ipmmu->dev = &pdev->dev;
- ipmmu->ipmmu_base = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
- if (!ipmmu->ipmmu_base) {
- dev_err(&pdev->dev, "ioremap_nocache failed\n");
- return -ENOMEM;
- }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ipmmu->ipmmu_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ipmmu->ipmmu_base))
+ return PTR_ERR(ipmmu->ipmmu_base);
+
ipmmu->dev_names = pdata->dev_names;
ipmmu->num_dev_names = pdata->num_dev_names;
platform_set_drvdata(pdev, ipmmu);
ipmmu_reg_write(ipmmu, IMCTR1, 0x0); /* disable TLB */
ipmmu_reg_write(ipmmu, IMCTR2, 0x0); /* disable PMB */
- ipmmu_iommu_init(ipmmu);
- return 0;
+ return ipmmu_iommu_init(ipmmu);
}
static struct platform_driver ipmmu_driver = {