From: John Ogness <john.ogn...@linutronix.de>
The portdata spinlock can be taken in interrupt context (via
sierra_outdat_callback()).
Disable interrupts when taking the portdata spinlock.
Cc: Johan Hovold <jo...@kernel.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: John Ogness <john.ogn...@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
---
drivers/usb/serial/sierra.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index d189f953c891..55956a638f5b 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -770,9 +770,9 @@ static void sierra_close(struct usb_serial_port *port)
kfree(urb->transfer_buffer);
usb_free_urb(urb);
usb_autopm_put_interface_async(serial->interface);
- spin_lock(&portdata->lock);
+ spin_lock_irq(&portdata->lock);
portdata->outstanding_urbs--;
- spin_unlock(&portdata->lock);
+ spin_unlock_irq(&portdata->lock);
}
sierra_stop_rx_urbs(port);
--
2.18.0
--
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