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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0483-drm-vc4-Fix-oops-when-userspace-hands-in-a-bad-BO.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0483-drm-vc4-Fix-oops-when-userspace-hands-in-a-bad-BO.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0483-drm-vc4-Fix-oops-when-userspace-hands-in-a-bad-BO.patch b/target/linux/brcm2708/patches-4.4/0483-drm-vc4-Fix-oops-when-userspace-hands-in-a-bad-BO.patch
new file mode 100644
index 0000000000..00b1511981
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0483-drm-vc4-Fix-oops-when-userspace-hands-in-a-bad-BO.patch
@@ -0,0 +1,26 @@
+From 6d3d23c57b33d76f0b4f01221593182c0de34ef4 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 25 Jul 2016 16:10:04 -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(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_gem.c
++++ b/drivers/gpu/drm/vc4/vc4_gem.c
+@@ -585,7 +585,7 @@ vc4_cl_lookup_bos(struct drm_device *dev
+
+ fail:
+ drm_free_large(handles);
+- return 0;
++ return ret;
+ }
+
+ static int