[Pkg-gnupg-commit] [gnupg2] 96/160: common: Smart up register_mem_cleanup_func.

[Daniel Kahn Gillmor]

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commit 6446a6b3dfd3b2e68b4285870f902ed1f86b0866
Author: Werner Koch <wk at gnupg.org>
Date:   Fri Jul 1 14:42:18 2016 +0200

    common: Smart up register_mem_cleanup_func.
    
    * common/init.c (register_mem_cleanup_func): Avoid double registration.
    
    Signed-off-by: Werner Koch <wk at gnupg.org>
---
 common/init.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/init.c b/common/init.c
index c68a4e6..c406ffe 100644
--- a/common/init.c
+++ b/common/init.c
@@ -106,6 +106,10 @@ register_mem_cleanup_func (void (*func)(void))
 {
   mem_cleanup_item_t item;
 
+  for (item = mem_cleanup_list; item; item = item->next)
+    if (item->func == func)
+      return; /* Function has already been registered.  */
+
   item = malloc (sizeof *item);
   if (item)
     {

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