From: Thierry Reding <treding@nvidia.com>
Date: Wed, 25 Sep 2019 11:26:59 +0000 (+0200)
Subject: drm/tegra: Fix ordering of cleanup code
X-Git-Tag: v5.4.13~175
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0d03645bc4318fb5488ec5671ab3d2d64cd45c3a;p=thirdparty%2Fkernel%2Fstable.git

drm/tegra: Fix ordering of cleanup code

commit 051172e8c1ceef8749f19faacc1d3bef65d20d8d upstream.

Commit Fixes: b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after
initialization") changed the initialization order of the IOMMU related
bits but didn't update the cleanup path accordingly. This asymmetry can
cause failures during error recovery.

Fixes: b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after initialization")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 6fb7d74ff5530..bc7cc32140f81 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -201,19 +201,19 @@ hub:
 	if (tegra->hub)
 		tegra_display_hub_cleanup(tegra->hub);
 device:
-	host1x_device_exit(device);
-fbdev:
-	drm_kms_helper_poll_fini(drm);
-	tegra_drm_fb_free(drm);
-config:
-	drm_mode_config_cleanup(drm);
-
 	if (tegra->domain) {
 		mutex_destroy(&tegra->mm_lock);
 		drm_mm_takedown(&tegra->mm);
 		put_iova_domain(&tegra->carveout.domain);
 		iova_cache_put();
 	}
+
+	host1x_device_exit(device);
+fbdev:
+	drm_kms_helper_poll_fini(drm);
+	tegra_drm_fb_free(drm);
+config:
+	drm_mode_config_cleanup(drm);
 domain:
 	if (tegra->domain)
 		iommu_domain_free(tegra->domain);