From: Wei Yongjun yongjun_wei@trendmicro.com.cn

In case of error, the function iommu_domain_alloc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test.

Signed-off-by: Wei Yongjun yongjun_wei@trendmicro.com.cn --- drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index ec12efb..2ed025d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -102,7 +102,7 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)

if (iommu_present(&platform_bus_type)) { tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type); - if (IS_ERR(tdev->iommu.domain)) + if (!tdev->iommu.domain) goto error;

/*