use mallocarray() when reallocating the mux table

diff --git a/sys/dev/wscons/wsmux.c b/sys/dev/wscons/wsmux.c
index 8546c0d..8068ede 100644 (file)
--- a/sys/dev/wscons/wsmux.c
+++ b/sys/dev/wscons/wsmux.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: wsmux.c,v 1.27 2014/07/12 18:48:53 tedu Exp $ */
+/*     $OpenBSD: wsmux.c,v 1.28 2015/01/11 03:04:53 deraadt Exp $      */
 /*      $NetBSD: wsmux.c,v 1.37 2005/04/30 03:47:12 augustss Exp $      */
 
 /*
@@ -133,8 +133,8 @@ wsmux_getmux(int n)
        /* Make sure there is room for mux n in the table */
        if (n >= nwsmux) {
                old = wsmuxdevs;
-               new = (struct wsmux_softc **)
-                   malloc((n + 1) * sizeof (*wsmuxdevs), M_DEVBUF, M_NOWAIT);
+               new = mallocarray(n + 1, sizeof (*wsmuxdevs),
+                   M_DEVBUF, M_NOWAIT);
                if (new == NULL) {
                        printf("wsmux_getmux: no memory for mux %d\n", n);
                        return (NULL);