From: Alan Cox <alan@linux.intel.com>
Date: Thu, 1 Nov 2012 16:43:49 +0000 (+0000)
Subject: moxa: dcd handling of CLOCAL is backwards
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4bd82136cdf04f3a8d50e20c1b76da750f75f2db;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

moxa: dcd handling of CLOCAL is backwards

We should do hangup on dcd loss if CLOCAL is false not true.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=49911
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 56e616b9109..9b57aae139f 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1370,7 +1370,7 @@ static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
         	p->DCDState = dcd;
         	spin_unlock_irqrestore(&p->port.lock, flags);
 		tty = tty_port_tty_get(&p->port);
-		if (tty && C_CLOCAL(tty) && !dcd)
+		if (tty && !C_CLOCAL(tty) && !dcd)
 			tty_hangup(tty);
 		tty_kref_put(tty);
 	}