gdbm, dbm, sdbm: remove unnecessary conditions

The dfree and dsize callback functions are never called with NULL.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 5 deletions

diff --git a/ext/sdbm/init.c b/ext/sdbm/init.c
index de99b07367..f28eeb2f5e 100644
--- a/ext/sdbm/init.c
+++ b/ext/sdbm/init.c
@@ -99,12 +99,10 @@ free_sdbm(void *ptr)
 static size_t
 memsize_dbm(const void *ptr)
 {
-    size_t size = 0;
     const struct dbmdata *dbmp = ptr;
-    if (dbmp) {
-	size += sizeof(*dbmp);
-	if (dbmp->di_dbm) size += sizeof(DBM);
-    }
+    size_t size = sizeof(*dbmp);
+    if (dbmp->di_dbm)
+	size += sizeof(DBM);
     return size;
 }