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staging: android: ashmem.c: destroy slabs when init fails 

when ashmem init fails, destroy the slabs, leave
no garbage.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wenwei Tao 2015-12-09 00:15:52 +08:00 committed by Greg Kroah-Hartman
parent 59dfafd03f
commit a2df4e33d7
1 changed files with 11 additions and 4 deletions
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15
drivers/staging/android/ashmem.c
View File

@ -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);