diff options
Diffstat (limited to 'sys/lib/libsa/alloc.c')
| -rw-r--r-- | sys/lib/libsa/alloc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sys/lib/libsa/alloc.c b/sys/lib/libsa/alloc.c index 64f8a0bc643..1714ec06600 100644 --- a/sys/lib/libsa/alloc.c +++ b/sys/lib/libsa/alloc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: alloc.c,v 1.10 2009/05/14 18:54:03 miod Exp $ */ +/* $OpenBSD: alloc.c,v 1.11 2015/09/14 17:34:04 semarie Exp $ */ /* $NetBSD: alloc.c,v 1.6 1997/02/04 18:36:33 thorpej Exp $ */ /* @@ -213,8 +213,12 @@ found: void free(void *ptr, unsigned int size) { - struct fl *f = (struct fl *)((char *)ptr - - ALIGN(sizeof(unsigned))); + struct fl *f; + + if (ptr == NULL) + return; + + f = (struct fl *)((char *)ptr - ALIGN(sizeof(unsigned))); #ifdef ALLOC_TRACE printf("free(%p, %u) (origsize %u)\n", ptr, size, f->size); |