Explicitly test against NULL; do not use !p or similar

[openssl.git] / crypto / asn1 / x_bignum.c

diff --git a/crypto/asn1/x_bignum.c b/crypto/asn1/x_bignum.c
index c5e892900e1665b75bd23a4b6cd8ebf12f15834e..3ae58a49f0b25f76644a8dfb4383c3775b08b1e5 100644 (file)
--- a/crypto/asn1/x_bignum.c
+++ b/crypto/asn1/x_bignum.c
@@ -82,7 +82,7 @@ static int bn_secure_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);
@@ -96,7 +96,7 @@ static int bn_i2c(const 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 */
@@ -133,7 +133,7 @@ static int bn_secure_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
     int ret;
     BIGNUM *bn;
 
-    if (!*pval && !bn_secure_new(pval, it))
+    if (*pval == NULL && !bn_secure_new(pval, it))
         return 0;
 
     ret = bn_c2i(pval, cont, len, utype, free_cont, it);