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xfrm: make xfrm_alg_len() return unsigned int

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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 23:46:30 +03:00 committed by Steffen Klassert
parent 373b8eeb0c
commit 06cd22f830
2 changed files with 2 additions and 2 deletions
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2
include/net/xfrm.h
View File

@ -1769,7 +1769,7 @@ static inline unsigned int aead_len(struct xfrm_algo_aead *alg)
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}
static inline int xfrm_alg_len(const struct xfrm_algo *alg)
static inline unsigned int xfrm_alg_len(const struct xfrm_algo *alg)
{
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}

2
net/xfrm/xfrm_user.c
View File

@ -42,7 +42,7 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < xfrm_alg_len(algp))
if (nla_len(rt) < (int)xfrm_alg_len(algp))
return -EINVAL;
switch (type) {