[1/4] omap iommu: Check existence of arch_iommu

Commit Message

Vaibhav Hiremath March 25, 2011, 7:07 p.m. UTC

None

Patch

diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
index b1107c0..3d8f55e 100644
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -104,6 +104,9 @@  static int iommu_enable(struct iommu *obj)
        if (!obj)
                return -EINVAL;

+       if (!arch_iommu)
+               return -ENODEV;
+
        clk_enable(obj->clk);

        err = arch_iommu->enable(obj);