chan_console: Fix reference leaks to pvt.

Fix a bunch of calls to get_active_pvt
where the reference is never released.

ASTERISK-24504 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4152/
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Merged revisions 427554 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 427555 from http://svn.asterisk.org/svn/asterisk/branches/12
........

Merged revisions 427557 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@427566 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 40 insertions, 24 deletions

diff --git a/channels/chan_console.c b/channels/chan_console.c
index 7ddbcf0e3..b14d4b746 100644
--- a/channels/chan_console.c
+++ b/channels/chan_console.c
@@ -712,7 +712,7 @@ static struct console_pvt *get_active_pvt(void)
 static char *cli_console_autoanswer(struct ast_cli_entry *e, int cmd, 
 	struct ast_cli_args *a)
 {
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 	char *res = CLI_SUCCESS;
 
 	switch (cmd) {
@@ -729,6 +729,7 @@ static char *cli_console_autoanswer(struct ast_cli_entry *e, int cmd,
 		return NULL;
 	}
 
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active.\n");
 		return CLI_FAILURE;
@@ -759,7 +760,7 @@ static char *cli_console_autoanswer(struct ast_cli_entry *e, int cmd,
 
 static char *cli_console_flash(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 
 	if (cmd == CLI_INIT) {
 		e->command = "console flash";
@@ -767,17 +768,20 @@ static char *cli_console_flash(struct ast_cli_entry *e, int cmd, struct ast_cli_
 			"Usage: console flash\n"
 			"       Flashes the call currently placed on the console.\n";
 		return NULL;
-	} else if (cmd == CLI_GENERATE)
+	} else if (cmd == CLI_GENERATE) {
 		return NULL;
+	}
 
+	if (a->argc != e->args) {
+		return CLI_SHOWUSAGE;
+	}
+
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active\n");
 		return CLI_FAILURE;
 	}
 
-	if (a->argc != e->args)
-		return CLI_SHOWUSAGE;
-
 	if (!pvt->owner) {
 		ast_cli(a->fd, "No call to flash\n");
 		unref_pvt(pvt);
@@ -797,7 +801,7 @@ static char *cli_console_dial(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 {
 	char *s = NULL;
 	const char *mye = NULL, *myc = NULL; 
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 
 	if (cmd == CLI_INIT) {
 		e->command = "console dial";
@@ -805,16 +809,19 @@ static char *cli_console_dial(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 			"Usage: console dial [extension[@context]]\n"
 			"       Dials a given extension (and context if specified)\n";
 		return NULL;
-	} else if (cmd == CLI_GENERATE)
+	} else if (cmd == CLI_GENERATE) {
 		return NULL;
+	}
+
+	if (a->argc > e->args + 1) {
+		return CLI_SHOWUSAGE;
+	}
 
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is currently set as active\n");
 		return CLI_FAILURE;
 	}
-	
-	if (a->argc > e->args + 1)
-		return CLI_SHOWUSAGE;
 
 	if (pvt->owner) {	/* already in a call */
 		int i;
@@ -869,7 +876,7 @@ static char *cli_console_dial(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 
 static char *cli_console_hangup(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 
 	if (cmd == CLI_INIT) {
 		e->command = "console hangup";
@@ -877,16 +884,19 @@ static char *cli_console_hangup(struct ast_cli_entry *e, int cmd, struct ast_cli
 			"Usage: console hangup\n"
 			"       Hangs up any call currently placed on the console.\n";
 		return NULL;
-	} else if (cmd == CLI_GENERATE)
+	} else if (cmd == CLI_GENERATE) {
 		return NULL;
+	}
 
+	if (a->argc != e->args) {
+		return CLI_SHOWUSAGE;
+	}
+
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active\n");
 		return CLI_FAILURE;
 	}
-	
-	if (a->argc != e->args)
-		return CLI_SHOWUSAGE;
 
 	if (!pvt->owner && !pvt->hookstate) {
 		ast_cli(a->fd, "No call to hang up\n");
@@ -906,7 +916,7 @@ static char *cli_console_hangup(struct ast_cli_entry *e, int cmd, struct ast_cli
 static char *cli_console_mute(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
 	const char *s;
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 	char *res = CLI_SUCCESS;
 
 	if (cmd == CLI_INIT) {
@@ -915,17 +925,20 @@ static char *cli_console_mute(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 			"Usage: console {mute|unmute}\n"
 			"       Mute/unmute the microphone.\n";
 		return NULL;
-	} else if (cmd == CLI_GENERATE)
+	} else if (cmd == CLI_GENERATE) {
 		return NULL;
+	}
 
+	if (a->argc != e->args) {
+		return CLI_SHOWUSAGE;
+	}
+
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active\n");
 		return CLI_FAILURE;
 	}
 
-	if (a->argc != e->args)
-		return CLI_SHOWUSAGE;
-
 	s = a->argv[e->args-1];
 	if (!strcasecmp(s, "mute"))
 		pvt->muted = 1;
@@ -1053,7 +1066,7 @@ static char *cli_list_devices(struct ast_cli_entry *e, int cmd, struct ast_cli_a
  */
 static char *cli_console_answer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 
 	switch (cmd) {
 	case CLI_INIT:
@@ -1067,6 +1080,7 @@ static char *cli_console_answer(struct ast_cli_entry *e, int cmd, struct ast_cli
 		return NULL;	/* no completion */
 	}
 
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active\n");
 		return CLI_FAILURE;
@@ -1103,7 +1117,7 @@ static char *cli_console_answer(struct ast_cli_entry *e, int cmd, struct ast_cli
 static char *cli_console_sendtext(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
 	char buf[TEXT_SIZE];
-	struct console_pvt *pvt = get_active_pvt();
+	struct console_pvt *pvt;
 	struct ast_frame f = {
 		.frametype = AST_FRAME_TEXT,
 		.data.ptr = buf,
@@ -1117,9 +1131,11 @@ static char *cli_console_sendtext(struct ast_cli_entry *e, int cmd, struct ast_c
 			"Usage: console send text <message>\n"
 			"       Sends a text message for display on the remote terminal.\n";
 		return NULL;
-	} else if (cmd == CLI_GENERATE)
+	} else if (cmd == CLI_GENERATE) {
 		return NULL;
+	}
 
+	pvt = get_active_pvt();
 	if (!pvt) {
 		ast_cli(a->fd, "No console device is set as active\n");
 		return CLI_FAILURE;