1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 640fe0173236..f1ec1680e822 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -325,7 +325,7 @@ static void usb_wwan_outdat_callback(struct urb *urb)
 
         for (i = 0; i < N_OUT_URB; ++i) {
                 if (portdata->out_urbs[i] == urb) {
-                        smp_mb__before_clear_bit();
+                        smp_mb__before_atomic();
                         clear_bit(i, &portdata->out_busy);
                         break;
                 }