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[crypto/asn1/x_bignum.c] Explicit test against NULL

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As a fixup to https://github.com/openssl/openssl/pull/9779 to better
conform to the project code style guidelines, this commit amends the
original changeset to explicitly test against NULL, i.e. writing

```
if (p != NULL)
```

rather than

```
if (!p)
```

(This is a backport of https://github.com/openssl/openssl/pull/9881)

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9882)
This commit is contained in:
Cesar Pereida Garcia 2019-09-12 17:09:51 +03:00 committed by Nicola Tuveri
parent 4e545c6a25
commit 0159a1bb41
1 changed files with 3 additions and 3 deletions

6
crypto/asn1/x_bignum.c

@ -102,7 +102,7 @@ ASN1_ITEM_end(CBIGNUM)
static int bn_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
{
*pval = (ASN1_VALUE *)BN_new();
if (*pval)
if (*pval != NULL)
return 1;
else
return 0;
@ -110,7 +110,7 @@ static int bn_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
static void bn_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
{
if (!*pval)
if (*pval == NULL)
return;
if (it->size & BN_SENSITIVE)
BN_clear_free((BIGNUM *)*pval);
@ -124,7 +124,7 @@ static int bn_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype,
{
BIGNUM *bn;
int pad;
if (!*pval)
if (*pval == NULL)
return -1;
bn = (BIGNUM *)*pval;
/* If MSB set in an octet we need a padding byte */