Use kmemdup_nul() helper instead of open-coding to
simplify the code.
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
security/keys/trusted-keys/trusted_core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/security/keys/trusted-keys/trusted_core.c b/security/keys/trusted-keys/trusted_core.c
index ec3a066a4b42..9430cba1f084 100644
--- a/security/keys/trusted-keys/trusted_core.c
+++ b/security/keys/trusted-keys/trusted_core.c
@@ -146,11 +146,9 @@ static int trusted_instantiate(struct key *key,
if (datalen <= 0 || datalen > 32767 || !prep->data)
return -EINVAL;
- datablob = kmalloc(datalen + 1, GFP_KERNEL);
+ datablob = kmemdup_nul(prep->data, datalen, GFP_KERNEL);
if (!datablob)
return -ENOMEM;
- memcpy(datablob, prep->data, datalen);
- datablob[datalen] = '\0';
payload = trusted_payload_alloc(key);
if (!payload) {
