The patch titled
usb serial console setup: initialise tty kref
has been added to the -mm tree. Its filename is
usb-serial-console-setup-initialise-tty-kref.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: usb serial console setup: initialise tty kref
From: Kevin Hao <kexin.hao@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/console.c | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/usb/serial/console.c~usb-serial-console-setup-initialise-tty-kref drivers/usb/serial/console.c
--- a/drivers/usb/serial/console.c~usb-serial-console-setup-initialise-tty-kref
+++ a/drivers/usb/serial/console.c
@@ -135,6 +135,7 @@ static int usb_console_setup(struct cons
err("no more memory");
goto reset_open_count;
}
+ kref_init(&tty->kref);
termios = kzalloc(sizeof(*termios), GFP_KERNEL);
if (!termios) {
retval = -ENOMEM;
_
Patches currently in -mm which might be from kexin.hao@xxxxxxxxxxxxx are
usb-serial-console-setup-initialise-tty-kref.patch
usb-serial-console-add-device-function.patch
usb-serial-console-add-device-function-fix.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
