Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.7 24/59] drm/vc4: Fix oops when userspace hands in a bad BO. | Date | Mon, 12 Sep 2016 17:29:44 +0200 |
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4.7-stable review patch. If anyone has any objections, please let me know.
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From: Eric Anholt <eric@anholt.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@anholt.net> Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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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