From a8817489dc3e3b1910842958a3b9d9e4832e99b0 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 3 Dec 2019 17:19:12 +0100 Subject: drm/tegra: Silence expected errors on IOMMU attach Subdevices may not be hooked up to an IOMMU via device tree. Detect such situations and avoid confusing users by not emitting an error message. Reviewed-by: Daniel Vetter Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/drm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/gpu/drm/tegra/drm.c') diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 56e5e7a5c108..7a16b51eaa2d 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -920,10 +920,8 @@ int host1x_client_iommu_attach(struct host1x_client *client) if (tegra->domain) { group = iommu_group_get(client->dev); - if (!group) { - dev_err(client->dev, "failed to get IOMMU group\n"); + if (!group) return -ENODEV; - } if (domain != tegra->domain) { err = iommu_attach_group(tegra->domain, group); -- cgit v1.2.3