From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 02 Mar 2016 10:10:47 +0000
Subject: [patch] iommu/exynos: checking for IS_ERR() instead of NULL
Message-Id: <20160302101047.GH5533@mwanda>
List-Id: <kernel-janitors.vger.kernel.org>
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To: Marek Szyprowski <m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Kukjin Kim <kgene-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

of_platform_device_create() returns NULL on error, it never returns
error pointers.

Fixes: 8ed55c812fa8 ('iommu/exynos: Init from dt-specific callback instead of initcall')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index b066504..cb57bda 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1347,8 +1347,8 @@ static int __init exynos_iommu_of_setup(struct device_node *np)
 		exynos_iommu_init();
 
 	pdev = of_platform_device_create(np, NULL, platform_bus_type.dev_root);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
+	if (!pdev)
+		return -ENOMEM;
 
 	/*
 	 * use the first registered sysmmu device for performing