[src/trunk]: src/sys/external/bsd/drm2/include/linux Fix broken error checkin...

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

details:   https://anonhg.NetBSD.org/src/rev/fd36175a42aa
branches:  trunk
changeset: 336447:fd36175a42aa
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Mar 02 02:26:37 2015 +0000

description:
Fix broken error checking in kmalloc_array/kcalloc.

diffstat:

 sys/external/bsd/drm2/include/linux/slab.h |  8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diffs (28 lines):

diff -r 83fe1a2fd618 -r fd36175a42aa sys/external/bsd/drm2/include/linux/slab.h
--- a/sys/external/bsd/drm2/include/linux/slab.h        Sun Mar 01 23:39:28 2015 +0000
+++ b/sys/external/bsd/drm2/include/linux/slab.h        Mon Mar 02 02:26:37 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: slab.h,v 1.4 2014/07/16 20:59:58 riastradh Exp $       */
+/*     $NetBSD: slab.h,v 1.5 2015/03/02 02:26:37 riastradh Exp $       */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -96,16 +96,14 @@
 static inline void *
 kmalloc_array(size_t n, size_t size, gfp_t gfp)
 {
-       KASSERT(size != 0);
-       KASSERT(n <= (SIZE_MAX / size));
+       if ((size != 0) && (n > (SIZE_MAX / size)))
+               return NULL;
        return malloc((n * size), M_TEMP, linux_gfp_to_malloc(gfp));
 }
 
 static inline void *
 kcalloc(size_t n, size_t size, gfp_t gfp)
 {
-       if ((size == 0) && (n > (SIZE_MAX / size)))
-               return NULL;
        return kmalloc_array(n, size, (gfp | __GFP_ZERO));
 }