1 files changed, 5 insertions, 4 deletions
diff --git a/bitmap.c b/bitmap.c
index f95032250e7c..5089b04070e7 100644
--- a/bitmap.c
+++ b/bitmap.c
@@ -53,8 +53,9 @@ void
 bitmap_free(struct bitmap *b)
 {
 	if (b != NULL && b->d != NULL) {
-		explicit_bzero(b->d, b->len);
+		bitmap_zero(b);
 		free(b->d);
+		b->d = NULL;
 	}
 	free(b);
 }
@@ -86,10 +87,10 @@ reserve(struct bitmap *b, u_int n)
 		return -1; /* invalid */
 	nlen = (n / BITMAP_BITS) + 1;
 	if (b->len < nlen) {
-		if ((tmp = reallocarray(b->d, nlen, BITMAP_BYTES)) == NULL)
+		if ((tmp = recallocarray(b->d, b->len,
+		    nlen, BITMAP_BYTES)) == NULL)
 			return -1;
 		b->d = tmp;
-		memset(b->d + b->len, 0, (nlen - b->len) * BITMAP_BYTES);
 		b->len = nlen;
 	}
 	return 0;
@@ -188,7 +189,7 @@ bitmap_from_string(struct bitmap *b, const void *p, size_t l)
 {
 	int r;
 	size_t i, offset, shift;
-	u_char *s = (u_char *)p;
+	const u_char *s = (const u_char *)p;
 
 	if (l > BITMAP_MAX / 8)
 		return -1;