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-rw-r--r--drivers/iommu/omap-iommu.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index b888b7a6dd4f..df579f8779cd 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -26,6 +26,7 @@
#include <linux/of.h>
#include <linux/of_iommu.h>
#include <linux/of_irq.h>
+#include <linux/of_platform.h>
#include <asm/cacheflush.h>
@@ -1244,6 +1245,7 @@ static int omap_iommu_add_device(struct device *dev)
{
struct omap_iommu_arch_data *arch_data;
struct device_node *np;
+ struct platform_device *pdev;
/*
* Allocate the archdata iommu structure for DT-based devices.
@@ -1258,13 +1260,19 @@ static int omap_iommu_add_device(struct device *dev)
if (!np)
return 0;
+ pdev = of_find_device_by_node(np);
+ if (WARN_ON(!pdev)) {
+ of_node_put(np);
+ return -EINVAL;
+ }
+
arch_data = kzalloc(sizeof(*arch_data), GFP_KERNEL);
if (!arch_data) {
of_node_put(np);
return -ENOMEM;
}
- arch_data->name = kstrdup(dev_name(dev), GFP_KERNEL);
+ arch_data->name = kstrdup(dev_name(&pdev->dev), GFP_KERNEL);
dev->archdata.iommu = arch_data;
of_node_put(np);