target.c:target_read_live_memory: Fix type of local.

'ret' is used to hold the return of target_read, and pass it on.  Both
target_read and target_read_live_memory return LONGEST.

gdb/
2013-08-23  Pedro Alves  <palves@redhat.com>

	* target.c (target_read_live_memory): Change type of 'ret' local
	to LONGEST.

gdb/ChangeLog

@@ -1,3 +1,8 @@
+2013-08-23  Pedro Alves  <palves@redhat.com>
+
+	* target.c (target_read_live_memory): Change type of 'ret' local
+	to LONGEST.
+
 2013-08-23  Pedro Alves  <palves@redhat.com>
 
 	* remote.c (remote_write_bytes_aux, remote_write_bytes)

gdb/target.c

@@ -1364,7 +1364,7 @@ static LONGEST
 target_read_live_memory (enum target_object object,
 			 ULONGEST memaddr, gdb_byte *myaddr, LONGEST len)
 {
-  int ret;
+  LONGEST ret;
   struct cleanup *cleanup;
 
   /* Switch momentarily out of tfind mode so to access live memory.