[PATCH 20/23] Revert 'Remove unused struct serial::name field'

[Pedro Alves <palves@redhat.com>]

This commit reverts:

 commit 5f5219fc34f7557296272230123a3837960a6f09
 Author:     Pedro Alves <palves@redhat.com>
 AuthorDate: Tue Apr 12 16:49:30 2016 +0100

     Remove unused struct serial::name field

The following patches will add uses for the field.

gdb/ChangeLog:
yyyy-mm-dd  Pedro Alves  <palves@redhat.com>

	Revert:
	2016-04-12  Pedro Alves  <palves@redhat.com>
	* serial.c (serial_open, serial_fdopen_ops, do_serial_close):
	Remove references to name.
	* serial.h (struct serial) <name>: Delete.
---
 gdb/serial.c | 4 ++++
 gdb/serial.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/gdb/serial.c b/gdb/serial.c
index a881bbc97c..0ed3d37406 100644
--- a/gdb/serial.c
+++ b/gdb/serial.c
@@ -247,6 +247,7 @@ serial_open_ops_1 (const struct serial_ops *ops, const char *open_name)
       return NULL;
     }
 
+  scb->name = open_name != NULL ? xstrdup (open_name) : NULL;
   scb->next = scb_base;
   scb_base = scb;
 
@@ -291,6 +292,7 @@ serial_fdopen_ops (const int fd, const struct serial_ops *ops)
 
   scb = new_serial (ops);
 
+  scb->name = NULL;
   scb->next = scb_base;
   scb_base = scb;
 
@@ -330,6 +332,8 @@ do_serial_close (struct serial *scb, int really_close)
   if (really_close)
     scb->ops->close (scb);
 
+  xfree (scb->name);
+
   /* For serial_is_open.  */
   scb->bufp = NULL;
 
diff --git a/gdb/serial.h b/gdb/serial.h
index b75b3666e7..d58ab660e9 100644
--- a/gdb/serial.h
+++ b/gdb/serial.h
@@ -240,6 +240,7 @@ struct serial
 				   buffer.  -ve for sticky errors.  */
     unsigned char *bufp;	/* Current byte */
     unsigned char buf[BUFSIZ];	/* Da buffer itself */
+    char *name;			/* The name of the device or host */
     struct serial *next;	/* Pointer to the next `struct serial *' */
     int debug_p;		/* Trace this serial devices operation.  */
     int async_state;		/* Async internal state.  */
-- 
2.14.5