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don't free cp before we copy it!

This commit is contained in:
christos 2013-01-24 17:57:29 +00:00
parent 0a4e19dfb8
commit f7f3399458
1 changed files with 6 additions and 5 deletions
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11
libexec/ld.elf_so/xmalloc.c
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@ -1,4 +1,4 @@
/* $NetBSD: xmalloc.c,v 1.11 2011/05/25 14:41:46 christos Exp $ */
/* $NetBSD: xmalloc.c,v 1.12 2013/01/24 17:57:29 christos Exp $ */
/*
* Copyright 1996 John D. Polstra.
@ -77,7 +77,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: xmalloc.c,v 1.11 2011/05/25 14:41:46 christos Exp $");
__RCSID("$NetBSD: xmalloc.c,v 1.12 2013/01/24 17:57:29 christos Exp $");
#endif /* not lint */
#include <stdlib.h>
@ -369,12 +369,13 @@ irealloc(void *cp, size_t nbytes)
*(u_short *)((caddr_t)(op + 1) + op->ov_size) = RMAGIC;
#endif
return(cp);
} else
xfree(cp);
}
if ((res = imalloc(nbytes)) == NULL)
return (NULL);
if (cp != res) /* common optimization if "compacting" */
if (cp != res) { /* common optimization if "compacting" */
memcpy(res, cp, (nbytes < onb) ? nbytes : onb);
xfree(cp);
}
return (res);
}