Don't check for null pointer in calls to free

According to the C99 specification section 7.20.3.2 paragraph 2:

> If ptr is a null pointer, no action occurs.

So we do not need to check that the pointer is a null pointer.

2 files changed, 2 insertions, 4 deletions

diff --git a/ext/socket/getaddrinfo.c b/ext/socket/getaddrinfo.c
index 95a2feb3be..bf0d90129f 100644
--- a/ext/socket/getaddrinfo.c
+++ b/ext/socket/getaddrinfo.c
@@ -219,8 +219,7 @@ freeaddrinfo(struct addrinfo *ai)
 
         do {
                 next = ai->ai_next;
-                if (ai->ai_canonname)
-                        free(ai->ai_canonname);
+                free(ai->ai_canonname);
                 /* no need to free(ai->ai_addr) */
                 free(ai);
         } while ((ai = next) != NULL);
diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index eb74f7a936..74cb0644e6 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -1654,8 +1654,7 @@ socket_s_ip_address_list(VALUE self)
 
   finish:
     save_errno = errno;
-    if (lc.lifc_buf != NULL)
-        xfree(lc.lifc_req);
+    xfree(lc.lifc_req);
     if (fd != -1)
         close(fd);
     errno = save_errno;