drivers/iommu: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release or
on probe failure.  Thus, it is not needed to manually clear the device
driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Suman Anna <s-anna@ti.com>
Acked-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 4 deletions

diff --git a/drivers/iommu/msm_iommu_dev.c b/drivers/iommu/msm_iommu_dev.c
index 0a1c9626aa9e..08ba4972da9d 100644
--- a/drivers/iommu/msm_iommu_dev.c
+++ b/drivers/iommu/msm_iommu_dev.c
@@ -282,7 +282,6 @@ static int msm_iommu_remove(struct platform_device *pdev)
                 clk_put(drv->pclk);
                 memset(drv, 0, sizeof(*drv));
                 kfree(drv);
-                platform_set_drvdata(pdev, NULL);
         }
         return 0;
 }
@@ -366,7 +365,6 @@ static int msm_iommu_ctx_remove(struct platform_device *pdev)
         if (drv) {
                 memset(drv, 0, sizeof(struct msm_iommu_ctx_drvdata));
                 kfree(drv);
-                platform_set_drvdata(pdev, NULL);
         }
         return 0;
 }
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 0ba3766240d5..bcd78a720630 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1008,8 +1008,6 @@ static int omap_iommu_remove(struct platform_device *pdev)
         struct resource *res;
         struct omap_iommu *obj = platform_get_drvdata(pdev);
 
-        platform_set_drvdata(pdev, NULL);
-
         iopgtable_clear_entry_all(obj);
 
         irq = platform_get_irq(pdev, 0);