From a2df4e33d71ff819c9afcdf34392030cee349f47 Mon Sep 17 00:00:00 2001 From: Wenwei Tao Date: Wed, 9 Dec 2015 00:15:52 +0800 Subject: [PATCH] staging: android: ashmem.c: destroy slabs when init fails when ashmem init fails, destroy the slabs, leave no garbage. Signed-off-by: Wenwei Tao Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ashmem.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 3f2a3d611e4b..5bb1283d19cd 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -831,14 +831,14 @@ static struct miscdevice ashmem_misc = { static int __init ashmem_init(void) { - int ret; + int ret = -ENOMEM; ashmem_area_cachep = kmem_cache_create("ashmem_area_cache", sizeof(struct ashmem_area), 0, 0, NULL); if (unlikely(!ashmem_area_cachep)) { pr_err("failed to create slab cache\n"); - return -ENOMEM; + goto out; } ashmem_range_cachep = kmem_cache_create("ashmem_range_cache", @@ -846,13 +846,13 @@ static int __init ashmem_init(void) 0, 0, NULL); if (unlikely(!ashmem_range_cachep)) { pr_err("failed to create slab cache\n"); - return -ENOMEM; + goto out_free1; } ret = misc_register(&ashmem_misc); if (unlikely(ret)) { pr_err("failed to register misc device!\n"); - return ret; + goto out_free2; } register_shrinker(&ashmem_shrinker); @@ -860,5 +860,12 @@ static int __init ashmem_init(void) pr_info("initialized\n"); return 0; + +out_free2: + kmem_cache_destroy(ashmem_range_cachep); +out_free1: + kmem_cache_destroy(ashmem_area_cachep); +out: + return ret; } device_initcall(ashmem_init); -- 2.20.1