* [PATCH] integrity: iint: Optimize integrity_iintcache_init and integrity_inode_free function
@ 2022-10-18 7:26 Li zeming
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From: Li zeming @ 2022-10-18 7:26 UTC (permalink / raw)
To: zohar, dmitry.kasatkin, paul, jmorris, serge
Cc: linux-integrity, linux-security-module, linux-kernel, Li zeming
These functions are optimized as follows.
1. Remove void * variable foo cast type.
2. iint_cache Added memory allocation check.
Signed-off-by: Li zeming <zeming@nfschina.com>
---
security/integrity/iint.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 8638976f7990..7c902b92482e 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -160,7 +160,7 @@ void integrity_inode_free(struct inode *inode)
static void init_once(void *foo)
{
- struct integrity_iint_cache *iint = (struct integrity_iint_cache *) foo;
+ struct integrity_iint_cache *iint = foo;
memset(iint, 0, sizeof(*iint));
iint->ima_file_status = INTEGRITY_UNKNOWN;
@@ -177,6 +177,9 @@ static int __init integrity_iintcache_init(void)
iint_cache =
kmem_cache_create("iint_cache", sizeof(struct integrity_iint_cache),
0, SLAB_PANIC, init_once);
+ if (!iint_cache)
+ return -ENOMEM;
+
return 0;
}
DEFINE_LSM(integrity) = {
--
2.18.2
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2022-10-18 7:26 [PATCH] integrity: iint: Optimize integrity_iintcache_init and integrity_inode_free function Li zeming
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