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Another thread-safety fix

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This commit is contained in:
Bodo Möller 2006-06-16 01:01:14 +00:00
parent 0e73294e26
commit 4a9cfd763e
1 changed files with 8 additions and 6 deletions
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14
crypto/bn/bn_mont.c
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@ -407,6 +407,7 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
const BIGNUM *mod, BN_CTX *ctx)
{
int got_write_lock = 0;
BN_MONT_CTX *ret;
CRYPTO_r_lock(lock);
if (!*pmont)
@ -417,19 +418,20 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
if (!*pmont)
{
BN_MONT_CTX *mtmp;
mtmp = BN_MONT_CTX_new();
if (mtmp && !BN_MONT_CTX_set(mtmp, mod, ctx))
BN_MONT_CTX_free(mtmp);
ret = BN_MONT_CTX_new();
if (ret && !BN_MONT_CTX_set(ret, mod, ctx))
BN_MONT_CTX_free(ret);
else
*pmont = mtmp;
*pmont = ret;
}
}
ret = *pmont;
if (got_write_lock)
CRYPTO_w_unlock(lock);
else
CRYPTO_r_unlock(lock);
return *pmont;
return ret;
}