Fixed a gcc-7-strict-warnings issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3026)

diff --git a/crypto/asn1/a_bitstr.c b/crypto/asn1/a_bitstr.c
index f906188b114b088c44dc71e9270d400b5a07e55d..c429342e03d42a533fff8ce66aaf39e45e027db9 100644 (file)
--- a/crypto/asn1/a_bitstr.c
+++ b/crypto/asn1/a_bitstr.c
@@ -114,10 +114,11 @@ int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp)
 
     *(p++) = (unsigned char)bits;
     d = a->data;
-    memcpy(p, d, len);
-    p += len;
-    if (len > 0)
+    if (len > 0) {
+        memcpy(p, d, len);
+        p += len;
         p[-1] &= (0xff << bits);
+    }
     *pp = p;
     return (ret);
 }