From: Richard W.M. Jones <rjones@redhat.com>
Date: Fri, 29 May 2009 14:30:57 +0000 (+0100)
Subject: Correctly handle malloc/realloc(0)
X-Git-Tag: 1.0.38~4
X-Git-Url: http://git.annexia.org/?a=commitdiff_plain;h=afa6f05e2e0d784250ab6408ff13152920d74495;p=libguestfs.git

Correctly handle malloc/realloc(0)
 - malloc and realloc(0) are valid requests.  Some implementations
   may return NULL for these, which would not indicate an error.
---

diff --git a/src/guestfs.c b/src/guestfs.c
index fb214c5..c5056d4 100644
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -418,7 +418,7 @@ void *
 guestfs_safe_malloc (guestfs_h *g, size_t nbytes)
 {
   void *ptr = malloc (nbytes);
-  if (!ptr) g->abort_cb ();
+  if (nbytes > 0 && !ptr) g->abort_cb ();
   return ptr;
 }
 
@@ -426,7 +426,7 @@ void *
 guestfs_safe_realloc (guestfs_h *g, void *ptr, int nbytes)
 {
   void *p = realloc (ptr, nbytes);
-  if (!p) g->abort_cb ();
+  if (nbytes > 0 && !p) g->abort_cb ();
   return p;
 }