From: Johan Hovold <jhovold@gmail.com>
Date: Sun, 29 Dec 2013 18:22:59 +0000 (+0100)
Subject: USB: pl2303: remove bogus delta_msr_wait wake up
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=71c671bf4cead0e801eccbed3fe790e817f6b6d4;p=deliverable%2Flinux.git

USB: pl2303: remove bogus delta_msr_wait wake up

Remove bogus MSR wait-queue wake up from process_read_urb which never
updates the MSR flags.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 3dd5398174c1..6234d55372cb 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -787,7 +787,6 @@ static void pl2303_process_read_urb(struct urb *urb)
 	line_status = priv->line_status;
 	priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
 	spin_unlock_irqrestore(&priv->lock, flags);
-	wake_up_interruptible(&port->port.delta_msr_wait);
 
 	if (!urb->actual_length)
 		return;