From: Johan Hovold <johan@xxxxxxxxxx>
commit db81de767e375743ebb0ad2bcad3326962c2b67e upstream.
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: ee467a1f2066 ("USB: serial: add Moxa UPORT 12XX/14XX/16XX
driver")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Acked-by: Greg Kroah-Hartman <greg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/usb/serial/mxuport.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c
index ab1d690..460a406 100644
--- a/drivers/usb/serial/mxuport.c
+++ b/drivers/usb/serial/mxuport.c
@@ -1284,7 +1284,8 @@ static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port)
}
/* Initial port termios */
- mxuport_set_termios(tty, port, NULL);
+ if (tty)
+ mxuport_set_termios(tty, port, NULL);
/*
* TODO: use RQ_VENDOR_GET_MSR, once we know what it
--
2.1.0
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