From: Haipeng YU <haipeng.yu@xxxxxxxxxxxxxx>
When a device is switched off by software, gserial_cleanup will
be called, and switch off will be blocked in this function
because wake_up_interruptible() in gs_close() can not wake_up
the wait_event() in gserial_cleanup(), it should be changed to
wake_up() to match the wait_event().
Signed-off-by: Haipeng YU <haipeng.yu@xxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
drivers/usb/gadget/u_serial.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index f173952..2d074ba 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -887,7 +887,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
port->port_num, tty, file);
- wake_up_interruptible(&port->port.close_wait);
+ wake_up(&port->port.close_wait);
exit:
spin_unlock_irq(&port->port_lock);
}
--
1.7.11.3
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