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authorIngo Molnar <mingo@kernel.org>2018-12-03 11:44:00 +0100
committerIngo Molnar <mingo@kernel.org>2018-12-03 11:44:00 +0100
commit989a4222c13a3e148772730d362fceb0727852f5 (patch)
treec66538440a53713e8d3fc52db62e174c6966f831 /drivers/gpu/drm/drm_auth.c
parente8da8794a7fd9eef1ec9a07f0d4897c68581c72b (diff)
parent2595646791c319cadfdbf271563aac97d0843dc7 (diff)
Merge tag 'v4.20-rc5' into irq/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/drm_auth.c')
-rw-r--r--drivers/gpu/drm/drm_auth.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index d9c0f7573905..1669c42c40ed 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -142,6 +142,7 @@ static int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv)
lockdep_assert_held_once(&dev->master_mutex);
+ WARN_ON(fpriv->is_master);
old_master = fpriv->master;
fpriv->master = drm_master_create(dev);
if (!fpriv->master) {
@@ -170,6 +171,7 @@ out_err:
/* drop references and restore old master on failure */
drm_master_put(&fpriv->master);
fpriv->master = old_master;
+ fpriv->is_master = 0;
return ret;
}