[PATCH] usb: gadget: u_serial: remove some dead code

[Dan Carpenter]

There is no need to check if "port" is NULL.  We already verified that it
is non-NULL.  It's a stack variable and can't be modified by a different
thread.  Delete this dead code.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/usb/gadget/function/u_serial.c | 7 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index ab544f6824be..96756a489d6a 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -1501,13 +1501,7 @@ void gserial_suspend(struct gserial *gser)
 		spin_unlock_irqrestore(&serial_port_lock, flags);
 		if (!gserial_wakeup_host(gser))
 			return;
-
-		/* Check if port is valid after acquiring lock back */
 		spin_lock_irqsave(&serial_port_lock, flags);
-		if (!port) {
-			spin_unlock_irqrestore(&serial_port_lock, flags);
-			return;
-		}
 	}
 
 	spin_lock(&port->port_lock);
-- 
2.47.2