Merged revisions 263640 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

................
  r263640 | mmichelson | 2010-05-17 17:08:01 -0500 (Mon, 17 May 2010) | 16 lines
  
  Merged revisions 263639 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
  ........
    r263639 | mmichelson | 2010-05-17 17:00:28 -0500 (Mon, 17 May 2010) | 10 lines
    
    Fix logic error when checking for a devstate provider.
    
    When using strsep, if one of the list of specified separators is not found,
    it is the first parameter to strsep which is now NULL, not the pointer returned
    by strsep.
    
    This issue isn't especially severe in that the worst it is likely to do is waste
    some cycles when a device with no '/' and no ':' is passed to ast_device_state.
  ........
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@263642 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/devicestate.c

@@ -327,8 +327,10 @@ static enum ast_device_state _ast_device_state(const char *device, int check_cac
 	buf = ast_strdupa(device);
 	tech = strsep(&buf, "/");
 	if (!(number = buf)) {
-		if (!(provider = strsep(&tech, ":")))
+		provider = strsep(&tech, ":");
+		if (!tech) {
 			return AST_DEVICE_INVALID;
+		}
 		/* We have a provider */
 		number = tech;
 		tech = NULL;