[PATCH] iommu: omap-iommu.c: remove unnecessary null pointer check

[Cong Ding <dinggnu@gmail.com>]

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>
---
 drivers/iommu/omap-iommu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d33c980..6ac02fa 100644
--- 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);
-- 
1.7.10.4