Fix memory leaks

(closes issue ASTERISK-22368)
Reported by: Corey Farrell
Patches:
     issueA22368_mixmonitor_free_filename.patch uploaded by wdoekes (license 5674)
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Merged revisions 398004 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 398011 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 398016 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@398017 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_mixmonitor.c

@@ -137,7 +137,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 				<variable name="MIXMONITOR_FILENAME">
 					<para>Will contain the filename used to record.</para>
 				</variable>
-			</variablelist>	
+			</variablelist>
 		</description>
 		<see-also>
 			<ref type="application">Monitor</ref>
@@ -404,7 +404,7 @@ static void destroy_monitor_audiohook(struct mixmonitor *mixmonitor)
 	ast_audiohook_destroy(&mixmonitor->audiohook);
 }
 
-static int startmon(struct ast_channel *chan, struct ast_audiohook *audiohook) 
+static int startmon(struct ast_channel *chan, struct ast_audiohook *audiohook)
 {
 	int res = 0;
 
@@ -496,13 +496,15 @@ static void mixmonitor_free(struct mixmonitor *mixmonitor)
 		if (mixmonitor->mixmonitor_ds) {
 			ast_mutex_destroy(&mixmonitor->mixmonitor_ds->lock);
 			ast_cond_destroy(&mixmonitor->mixmonitor_ds->destruction_condition);
-			ast_free(mixmonitor->filename_write);
-			ast_free(mixmonitor->filename_read);
 			ast_free(mixmonitor->mixmonitor_ds);
-			ast_free(mixmonitor->name);
-			ast_free(mixmonitor->post_process);
 		}
 
+		ast_free(mixmonitor->name);
+		ast_free(mixmonitor->post_process);
+		ast_free(mixmonitor->filename);
+		ast_free(mixmonitor->filename_write);
+		ast_free(mixmonitor->filename_read);
+
 		/* Free everything in the recipient list */
 		clear_mixmonitor_recipient_list(mixmonitor);
 
@@ -586,7 +588,7 @@ static void mixmonitor_save_prep(struct mixmonitor *mixmonitor, char *filename,
 	}
 }
 
-static void *mixmonitor_thread(void *obj) 
+static void *mixmonitor_thread(void *obj)
 {
 	struct mixmonitor *mixmonitor = obj;
 	char *fs_ext = "";