diff options
| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2012-12-10 02:11:13 -0500 |
|---|---|---|
| committer | Inki Dae <daeinki@gmail.com> | 2012-12-13 06:05:45 -0800 |
| commit | a0e41b562b3e302b47f887056d89189b816ce219 (patch) | |
| tree | cf828e38c0ebe71b05d440b40c8a3bb5552459e4 /drivers/gpu/drm/exynos/exynos_drm_iommu.c | |
| parent | ddd8e9594a2fc2b5bff40308483ec16a88e295ff (diff) | |
drm/exynos/iommu: fix return value check in drm_create_iommu_mapping()
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@trendmicro.com.cn>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_iommu.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c index 09db1983eb1a..2482b7f96341 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c @@ -56,8 +56,8 @@ 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) - return -ENOMEM; + if (IS_ERR(mapping)) + return PTR_ERR(mapping); dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), GFP_KERNEL); |