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authorSteve French <sfrench@us.ibm.com>2008-05-06 17:55:32 +0000
committerSteve French <sfrench@us.ibm.com>2008-05-06 17:55:32 +0000
commita815752ac0ffdb910e92958d41d28f4fb28e5296 (patch)
treea3aa16a282354da0debe8e3a3a7ed8aac6e54001 /drivers/char/generic_serial.c
parent5ade9deaaa3e1f7291467d97b238648e43eae15e (diff)
parenta15306365a16380f3bafee9e181ba01231d4acd7 (diff)
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/char/generic_serial.c')
-rw-r--r--drivers/char/generic_serial.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index 7ed7da1d99cf..252f73e48596 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -40,27 +40,27 @@ static int gs_debug;
#define gs_dprintk(f, str...) /* nothing */
#endif
-#define func_enter() gs_dprintk (GS_DEBUG_FLOW, "gs: enter %s\n", __FUNCTION__)
-#define func_exit() gs_dprintk (GS_DEBUG_FLOW, "gs: exit %s\n", __FUNCTION__)
+#define func_enter() gs_dprintk (GS_DEBUG_FLOW, "gs: enter %s\n", __func__)
+#define func_exit() gs_dprintk (GS_DEBUG_FLOW, "gs: exit %s\n", __func__)
#define RS_EVENT_WRITE_WAKEUP 1
module_param(gs_debug, int, 0644);
-void gs_put_char(struct tty_struct * tty, unsigned char ch)
+int gs_put_char(struct tty_struct * tty, unsigned char ch)
{
struct gs_port *port;
func_enter ();
- if (!tty) return;
+ if (!tty) return 0;
port = tty->driver_data;
- if (!port) return;
+ if (!port) return 0;
- if (! (port->flags & ASYNC_INITIALIZED)) return;
+ if (! (port->flags & ASYNC_INITIALIZED)) return 0;
/* Take a lock on the serial tranmit buffer! */
mutex_lock(& port->port_write_mutex);
@@ -68,7 +68,7 @@ void gs_put_char(struct tty_struct * tty, unsigned char ch)
if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
/* Sorry, buffer is full, drop character. Update statistics???? -- REW */
mutex_unlock(&port->port_write_mutex);
- return;
+ return 0;
}
port->xmit_buf[port->xmit_head++] = ch;
@@ -77,6 +77,7 @@ void gs_put_char(struct tty_struct * tty, unsigned char ch)
mutex_unlock(&port->port_write_mutex);
func_exit ();
+ return 1;
}
@@ -586,8 +587,7 @@ void gs_close(struct tty_struct * tty, struct file * filp)
port->flags &= ~GS_ACTIVE;
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ gs_flush_buffer(tty);
tty_ldisc_flush(tty);
tty->closing = 0;