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drm/tegra: Check for NULL pointer instead of IS_ERR()

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

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dan Carpenter 2014-12-04 14:00:35 +03:00 committed by Thierry Reding
parent 518e6227af
commit bf19b885f9
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/tegra/drm.c
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@ -36,8 +36,8 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
if (iommu_present(&platform_bus_type)) {
tegra->domain = iommu_domain_alloc(&platform_bus_type);
if (IS_ERR(tegra->domain)) {
err = PTR_ERR(tegra->domain);
if (!tegra->domain) {
err = -ENOMEM;
goto free;
}