xfrm: make xfrm_alg_auth_len() return unsigned int

Key lengths can't be negative.

Comparison with nla_len() is left signed just in case negative value
can sneak in there.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Alexey Dobriyan
2017-09-21 23:47:09 +03:00
committed by Steffen Klassert
parent 06cd22f830
commit 1bd963a72e
2 changed files with 2 additions and 2 deletions

View File

@@ -68,7 +68,7 @@ static int verify_auth_trunc(struct nlattr **attrs)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < xfrm_alg_auth_len(algp))
if (nla_len(rt) < (int)xfrm_alg_auth_len(algp))
return -EINVAL;
algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';