From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Tue, 20 Nov 2012 12:16:50 +0000 (+0000)
Subject: drm/ttm: Fix locking in an error path
X-Git-Tag: firefly_0821_release~3680^2~1383^2~135
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ae8df2ae8aa27bfeb8d1b99e8adaac5810a97fa8;p=firefly-linux-kernel-4.4.55.git

drm/ttm: Fix locking in an error path

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c
index f18eeb458139..0e13d9f059ff 100644
--- a/drivers/gpu/drm/ttm/ttm_object.c
+++ b/drivers/gpu/drm/ttm/ttm_object.c
@@ -174,7 +174,9 @@ int ttm_base_object_init(struct ttm_object_file *tfile,
 
 	return 0;
 out_err1:
+	spin_lock(&tdev->object_lock);
 	(void)drm_ht_remove_item(&tdev->object_hash, &base->hash);
+	spin_unlock(&tdev->object_lock);
 out_err0:
 	return ret;
 }