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authorDavid S. Miller <davem@davemloft.net>2011-04-11 16:44:25 -0400
committerDavid S. Miller <davem@davemloft.net>2011-04-11 16:44:25 -0400
commit1c01a80cfec6f806246f31ff2680cd3639b30e67 (patch)
tree0b554aad2ec1da71ecf6339d4ba51617bfe1dc3c /drivers/tty/n_tty.c
parentc44d79950b2daa1025e62eede73e4e4a274d1ef3 (diff)
parent4a9f65f6304a00f6473e83b19c1e83caa1e42530 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/smsc911x.c
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r--drivers/tty/n_tty.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 428f4fe0b5f..0ad32888091 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -95,6 +95,7 @@ static void n_tty_set_room(struct tty_struct *tty)
95{ 95{
96 /* tty->read_cnt is not read locked ? */ 96 /* tty->read_cnt is not read locked ? */
97 int left = N_TTY_BUF_SIZE - tty->read_cnt - 1; 97 int left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
98 int old_left;
98 99
99 /* 100 /*
100 * If we are doing input canonicalization, and there are no 101 * If we are doing input canonicalization, and there are no
@@ -104,7 +105,12 @@ static void n_tty_set_room(struct tty_struct *tty)
104 */ 105 */
105 if (left <= 0) 106 if (left <= 0)
106 left = tty->icanon && !tty->canon_data; 107 left = tty->icanon && !tty->canon_data;
108 old_left = tty->receive_room;
107 tty->receive_room = left; 109 tty->receive_room = left;
110
111 /* Did this open up the receive buffer? We may need to flip */
112 if (left && !old_left)
113 schedule_work(&tty->buf.work);
108} 114}
109 115
110static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty) 116static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty)