a failed mmap returns MAP_FAILED, not NULL. found while exercising pax

in low-mem conditions; ok dim@

1 files changed, 3 insertions, 3 deletions

diff --git a/src/lib/libc/stdlib/malloc.c b/src/lib/libc/stdlib/malloc.c
index ace34c96f6..39951bc904 100644
--- a/src/lib/libc/stdlib/malloc.c
+++ b/src/lib/libc/stdlib/malloc.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: malloc.c,v 1.84 2006/10/24 04:35:30 tedu Exp $        */
+/*      $OpenBSD: malloc.c,v 1.85 2006/12/19 13:00:50 otto Exp $        */
 
 /*
  * ----------------------------------------------------------------------------
@@ -267,7 +267,7 @@ alloc_pgfree()
 
         if (pgfree_list == NULL) {
                 p = MMAP(malloc_pagesize);
-                if (!p)
+                if (p == MAP_FAILED)
                         return NULL;
                 for (i = 0; i < malloc_pagesize / sizeof(*p); i++) {
                         p[i].next = pgfree_list;
@@ -288,7 +288,7 @@ alloc_pginfo()
 
         if (pginfo_list == NULL) {
                 p = MMAP(malloc_pagesize);
-                if (!p)
+                if (p == MAP_FAILED)
                         return NULL;
                 for (i = 0; i < malloc_pagesize / sizeof(*p); i++) {
                         p[i].next = pginfo_list;