mdocml: Explicitly set the *data member of struct ohash_info to NULL.

mdocml: Explicitly set the *data member of struct ohash_info to NULL.

[schwarze]

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Log Message:
-----------
Explicitly set the *data member of struct ohash_info to NULL.
It is never dereferenced, but it gets copied around, which worries
static analysis tools and might also confuse human auditors.
FreeBSD Coverity CID 1261298, 1261299, 1261300, reported by
Pedro Giffuni and Ulrich Spörlein <pfg@ and uqs@ at FreeBSD>.

Modified Files:
--------------
    mdocml:
        mandocdb.c

Revision Data
-------------
Index: mandocdb.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mandocdb.c,v
retrieving revision 1.180
retrieving revision 1.181
diff -Lmandocdb.c -Lmandocdb.c -u -p -r1.180 -r1.181
--- mandocdb.c
+++ mandocdb.c
@@ -350,7 +350,8 @@ mandocdb(int argc, char *argv[])
 
 	mpages_info.alloc  = mlinks_info.alloc  = hash_alloc;
 	mpages_info.calloc = mlinks_info.calloc = hash_calloc;
-	mpages_info.free  = mlinks_info.free  = hash_free;
+	mpages_info.free   = mlinks_info.free   = hash_free;
+	mpages_info.data   = mlinks_info.data   = NULL;
 
 	mpages_info.key_offset = offsetof(struct mpage, inodev);
 	mlinks_info.key_offset = offsetof(struct mlink, file);
@@ -1106,6 +1107,7 @@ mpages_merge(struct mparse *mp)
 	str_info.alloc = hash_alloc;
 	str_info.calloc = hash_calloc;
 	str_info.free = hash_free;
+	str_info.data = NULL;
 	str_info.key_offset = offsetof(struct str, key);
 
 	if ( ! nodb)
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