[src/nick-nhusb]: src/sys/dev/usb Be more careful about malloc returning NULL

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2cc773b594f2
branches:  nick-nhusb
changeset: 334628:2cc773b594f2
user:      skrll <skrll%NetBSD.org@localhost>
date:      Wed Feb 01 07:55:08 2017 +0000

description:
Be more careful about malloc returning NULL

diffstat:

 sys/dev/usb/if_otus.c |  6 +++---
 sys/dev/usb/if_zyd.c  |  7 +++----
 2 files changed, 6 insertions(+), 7 deletions(-)

diffs (56 lines):

diff -r 98f291331ad9 -r 2cc773b594f2 sys/dev/usb/if_otus.c
--- a/sys/dev/usb/if_otus.c     Tue Jan 31 17:09:08 2017 +0000
+++ b/sys/dev/usb/if_otus.c     Wed Feb 01 07:55:08 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_otus.c,v 1.25.6.9 2016/12/05 10:55:18 skrll Exp $   */
+/*     $NetBSD: if_otus.c,v 1.25.6.10 2017/02/01 07:55:08 skrll Exp $  */
 /*     $OpenBSD: if_otus.c,v 1.18 2010/08/27 17:08:00 jsg Exp $        */
 
 /*-
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_otus.c,v 1.25.6.9 2016/12/05 10:55:18 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_otus.c,v 1.25.6.10 2017/02/01 07:55:08 skrll Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -1493,7 +1493,7 @@
        DPRINTFN(DBG_FN, DBG_NO_SC, "\n");
 
        on = malloc(sizeof(*on), M_DEVBUF, M_NOWAIT | M_ZERO);
-       return &on->ni;
+       return on ? &on->ni : NULL;
 }
 
 Static int
diff -r 98f291331ad9 -r 2cc773b594f2 sys/dev/usb/if_zyd.c
--- a/sys/dev/usb/if_zyd.c      Tue Jan 31 17:09:08 2017 +0000
+++ b/sys/dev/usb/if_zyd.c      Wed Feb 01 07:55:08 2017 +0000
@@ -1,5 +1,5 @@
 /*     $OpenBSD: if_zyd.c,v 1.52 2007/02/11 00:08:04 jsg Exp $ */
-/*     $NetBSD: if_zyd.c,v 1.36.14.13 2017/01/28 12:12:19 skrll Exp $  */
+/*     $NetBSD: if_zyd.c,v 1.36.14.14 2017/02/01 07:55:08 skrll Exp $  */
 
 /*-
  * Copyright (c) 2006 by Damien Bergamini <damien.bergamini%free.fr@localhost>
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_zyd.c,v 1.36.14.13 2017/01/28 12:12:19 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_zyd.c,v 1.36.14.14 2017/02/01 07:55:08 skrll Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -672,8 +672,7 @@
        struct zyd_node *zn;
 
        zn = malloc(sizeof(struct zyd_node), M_80211_NODE, M_NOWAIT | M_ZERO);
-
-       return &zn->ni;
+       return zn ? &zn->ni : NULL;
 }
 
 Static int