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Date: Mon, 12 Sep 2016 17:29:44 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Eric Anholt <eric@...olt.net>
Subject: [PATCH 4.7 24/59] drm/vc4: Fix oops when userspace hands in a bad BO.
4.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Anholt <eric@...olt.net>
commit 552416c146fadc67cd9b53ef7adf88d3381c43a6 upstream.
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@...olt.net>
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.")
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/gpu/drm/vc4/vc4_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -575,7 +575,7 @@ vc4_cl_lookup_bos(struct drm_device *dev
fail:
drm_free_large(handles);
- return 0;
+ return ret;
}
static int
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