iommu/omap: Remove unnecessary null pointer check

The pointer obj is dereferenced in line 146 and 149 respectively, so it is not
necessary to check null again in line 149 and 175. And I have checked that all
the callers of these two functions guarantee the parameter obj passed is not
null.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d33c980e9c205a3158dec5993ab9b80327690325..6ac02fa5910f13748e751c5a3266aa0c8273d89e 100644 (file)
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -146,7 +146,7 @@ static int iommu_enable(struct omap_iommu *obj)
        struct platform_device *pdev = to_platform_device(obj->dev);
        struct iommu_platform_data *pdata = pdev->dev.platform_data;
 
-       if (!obj || !pdata)
+       if (!pdata)
                return -EINVAL;
 
        if (!arch_iommu)
@@ -172,7 +172,7 @@ static void iommu_disable(struct omap_iommu *obj)
        struct platform_device *pdev = to_platform_device(obj->dev);
        struct iommu_platform_data *pdata = pdev->dev.platform_data;
 
-       if (!obj || !pdata)
+       if (!pdata)
                return;
 
        arch_iommu->disable(obj);