diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-21 21:36:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-21 21:36:59 +0300 |
| commit | dd7d99dc688d0fc448976f52f8517fbdeccdccda (patch) | |
| tree | 4ad59de5d584cf03e772ee153260c24ba0d717bd /drivers/usb/serial/quatech2.c | |
| parent | 42bbdd99221bac206dde2b5e87098177fcd2a48e (diff) | |
| parent | def9d2780727cec3313ed3522d0123158d87224d (diff) | |
| download | linux-dd7d99dc688d0fc448976f52f8517fbdeccdccda.tar.xz | |
Merge 5.5-rc7 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/quatech2.c')
| -rw-r--r-- | drivers/usb/serial/quatech2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index a62981ca7a73..f93b81a297d6 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -841,7 +841,10 @@ static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch) u8 newMSR = (u8) *ch; unsigned long flags; + /* May be called from qt2_process_read_urb() for an unbound port. */ port_priv = usb_get_serial_port_data(port); + if (!port_priv) + return; spin_lock_irqsave(&port_priv->lock, flags); port_priv->shadowMSR = newMSR; @@ -869,7 +872,10 @@ static void qt2_update_lsr(struct usb_serial_port *port, unsigned char *ch) unsigned long flags; u8 newLSR = (u8) *ch; + /* May be called from qt2_process_read_urb() for an unbound port. */ port_priv = usb_get_serial_port_data(port); + if (!port_priv) + return; if (newLSR & UART_LSR_BI) newLSR &= (u8) (UART_LSR_OE | UART_LSR_BI); |