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USB: io_ti, stop dereferencing potential NULL
authorJiri Slaby <jslaby@suse.cz>
Thu, 4 Apr 2013 20:41:01 +0000 (22:41 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 5 Apr 2013 22:38:30 +0000 (15:38 -0700)
tty_port_tty_get might return a tty which is NULL. But it is
dereferenced unconditionally in edge_send. Stop dereferencing that by
sending usb_serial_port pointer around.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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