diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch b/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch deleted file mode 100644 index 52d0de3914..0000000000 --- a/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch +++ /dev/null @@ -1,34 +0,0 @@ -From 3f131f18e76bb3fa56158adea3abddeaac68e860 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Thu, 9 Feb 2017 09:23:34 -0800 -Subject: [PATCH] drm/vc4: Fix OOPSes from trying to cache a partially - constructed BO. - -If a CMA allocation failed, the partially constructed BO would be -unreferenced through the normal path, and we might choose to put it in -the BO cache. If we then reused it before it expired from the cache, -the kernel would OOPS. - -Signed-off-by: Eric Anholt <eric@anholt.net> -Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.") ---- - drivers/gpu/drm/vc4/vc4_bo.c | 8 ++++++++ - 1 file changed, 8 insertions(+) - ---- a/drivers/gpu/drm/vc4/vc4_bo.c -+++ b/drivers/gpu/drm/vc4/vc4_bo.c -@@ -323,6 +323,14 @@ void vc4_free_object(struct drm_gem_obje - goto out; - } - -+ /* If this object was partially constructed but CMA allocation -+ * had failed, just free it. -+ */ -+ if (!bo->base.vaddr) { -+ vc4_bo_destroy(bo); -+ goto out; -+ } -+ - cache_list = vc4_get_cache_list_for_size(dev, gem_bo->size); - if (!cache_list) { - vc4_bo_destroy(bo); |