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Add kref to fake tty used by USB console
authorKevin Hao <kexin.hao@windriver.com>
Mon, 1 Dec 2008 11:36:16 +0000 (11:36 +0000)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 1 Dec 2008 16:19:10 +0000 (08:19 -0800)
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>

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