mirror of https://gitee.com/openkylin/linux.git
USB: mxuport: fix null deref when used as a console
Fix null-pointer dereference at probe when the device is used as a
console, in which case the tty argument to open will be NULL.
Fixes: ee467a1f20
("USB: serial: add Moxa UPORT 12XX/14XX/16XX
driver")
Cc: stable <stable@vger.kernel.org> # v3.14
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Greg Kroah-Hartman <greg@kroah.com>
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@ -1284,7 +1284,8 @@ static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port)
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}
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/* Initial port termios */
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mxuport_set_termios(tty, port, NULL);
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if (tty)
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mxuport_set_termios(tty, port, NULL);
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/*
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* TODO: use RQ_VENDOR_GET_MSR, once we know what it
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