tools/xenstore: fix hashtable_expand() zeroing new area

When realloc()ing the hashtable for expanding it, zero out all the new
bytes at the end of the table, not only one byte for each new element.

Fixes: 186f0e02a1c ("Added hashtable implementation")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>

diff --git a/tools/xenstore/hashtable.c b/tools/xenstore/hashtable.c
index 39fb3ed3389da0e8af995720be5ccac0b07b967c..6ac336eff1f47538e34e695da05d97c505766ec2 100644 (file)
--- a/tools/xenstore/hashtable.c
+++ b/tools/xenstore/hashtable.c
@@ -136,7 +136,8 @@ hashtable_expand(struct hashtable *h)
                    realloc(h->table, newsize * sizeof(struct entry *));
         if (NULL == newtable) { (h->primeindex)--; return 0; }
         h->table = newtable;
-        memset(newtable[h->tablelength], 0, newsize - h->tablelength);
+        memset(newtable + h->tablelength, 0,
+               (newsize - h->tablelength) * sizeof(*newtable));
         for (i = 0; i < h->tablelength; i++) {
             for (pE = &(newtable[i]), e = *pE; e != NULL; e = *pE) {
                 index = indexFor(newsize,e->h);