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Avoid a crash when res_timing_dahdi is unloaded but wasn't properly loaded. 

if dahdi_test_timer() fails, timing_funcs_handle remains NULL causing a crash
when calling ast_unregister_timing_interface() with a NULL pointer.

(closes issue #15234)
Reported by: eliel
Patches:
      timing_dahdi1.diff uploaded by eliel (license 64)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@198437 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Eliel C. Sardanons 2009-05-31 01:22:15 +00:00
parent 8580871fd4
commit 0c99bc31cb
1 changed files with 5 additions and 1 deletions
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6
res/res_timing_dahdi.c
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@ -192,7 +192,11 @@ static int load_module(void)
static int unload_module(void)
{
return ast_unregister_timing_interface(timing_funcs_handle);
if (timing_funcs_handle) {
return ast_unregister_timing_interface(timing_funcs_handle);
}
return 0;
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "DAHDI Timing Interface");