aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorKevin Hao <kexin.hao@windriver.com>2008-12-01 06:36:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-01 11:19:10 -0500
commite5404586a499f7dce915456e85ff94b2df7a3b1c (patch)
tree1e40e93b332e9e9399ab15345dc0c487d6237649
parent296fa7f6a3f3342d40df7713e74246198295654b (diff)
Add kref to fake tty used by USB console
We alloc a fake tty in usb serial console setup function. we should init the tty's kref otherwise we will face WARN_ON after following invoke of tty_port_tty_set --> tty_kref_get. Signed-off-by: Kevin Hao <kexin.hao@windriver.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/usb/serial/console.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 5b20de130e08..5b95009d2fbb 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -135,6 +135,7 @@ static int usb_console_setup(struct console *co, char *options)
135 err("no more memory"); 135 err("no more memory");
136 goto reset_open_count; 136 goto reset_open_count;
137 } 137 }
138 kref_init(&tty->kref);
138 termios = kzalloc(sizeof(*termios), GFP_KERNEL); 139 termios = kzalloc(sizeof(*termios), GFP_KERNEL);
139 if (!termios) { 140 if (!termios) {
140 retval = -ENOMEM; 141 retval = -ENOMEM;