From 552416c146fadc67cd9b53ef7adf88d3381c43a6 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Tue, 26 Jul 2016 13:47:15 -0700
Subject: [PATCH] drm/vc4: Fix oops when userspace hands in a bad BO.
We'd end up NULL pointer dereferencing because we didn't take the
error path out in the parent. Fixes igt vc4_lookup_fail test.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.")
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/vc4/vc4_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index fba2c831afe66..b262c5c26f109 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -573,7 +573,7 @@ vc4_cl_lookup_bos(struct drm_device *dev,
fail:
drm_free_large(handles);
- return 0;
+ return ret;
}
static int
--
GitLab