[PATCH 4.19 20/48] drm/nouveau/fbcon: fix module unload when fbcon init has failed for some reason

From: Greg Kroah-Hartman
Date: Mon Aug 10 2020 - 11:33:35 EST


From: Ben Skeggs <bskeggs@xxxxxxxxxx>

[ Upstream commit 498595abf5bd51f0ae074cec565d888778ea558f ]

Stale pointer was tripping up the unload path.

Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_fbcon.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 0f64c0a1d4b30..fef38ea146a2a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -599,6 +599,7 @@ fini:
drm_fb_helper_fini(&fbcon->helper);
free:
kfree(fbcon);
+ drm->fbcon = NULL;
return ret;
}

--
2.25.1