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Date: Fri, 7 Dec 2012 07:50:23 -0500 From: Wei Yongjun <weiyj.lk@...il.com> To: inki.dae@...sung.com, jy0922.shim@...sung.com, sw0312.kim@...sung.com, kyungmin.park@...sung.com, airlied@...ux.ie Cc: yongjun_wei@...ndmicro.com.cn, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: [PATCH -next] drm/exynos/iommu: fix return value check in drm_create_iommu_mapping() From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn> In case of error, function arm_iommu_create_mapping() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn> --- drivers/gpu/drm/exynos/exynos_drm_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c index 09db198..3b3d3a6 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c @@ -56,7 +56,7 @@ int drm_create_iommu_mapping(struct drm_device *drm_dev) mapping = arm_iommu_create_mapping(&platform_bus_type, priv->da_start, priv->da_space_size, priv->da_space_order); - if (!mapping) + if (IS_ERR(mapping)) return -ENOMEM; dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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