On 16/08/11 04:00, James Morris wrote:
> On Thu, 11 Aug 2011, Dmitry Kasatkin wrote:
>
>> +static int ksign_verify_rsa(struct key *key,
>> + const char *sig, int siglen,
>> + const char *h, int hlen)
>> +{
>> + int err = -ENOMEM;
>> + unsigned long len;
>> + unsigned long mlen, mblen;
>> + unsigned nret, l;
>> + int valid, head, i;
>> + unsigned char *out1 = NULL, *out2 = NULL;
>> + MPI in = NULL, res = NULL, pkey[2];
>> + uint8_t *p, *datap, *endp;
>> + struct user_key_payload *ukp;
>> + struct pubkey_hdr *pkh;
>> +
>> + down_read(&key->sem);
>> + ukp = key->payload.data;
>> + pkh = (struct pubkey_hdr *)ukp->data;
>> +
>> + if (pkh->version != 1)
>> + return -EINVAL;
>> +
>> + if (pkh->algo != PUBKEY_ALGO_RSA)
>> + return -EINVAL;
> Are you supposed to be still holding key->sem here?
>
Of course not.
that was late addition. Should be goto as in following cases...
- Dmitry
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