linux-kernel - [PATCH 2/2 v2] sh-sci / PM: Use power.irq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 21 Aug 2011 21:11:44 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	linux-sh@...r.kernel.org
Cc:	Linux PM mailing list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Alan Stern <stern@...land.harvard.edu>
Subject: [PATCH 2/2 v2] sh-sci / PM: Use power.irq_safe

From: Rafael J. Wysocki <rjw@...k.pl>

Since sci_port_enable() and sci_port_disable() may be run with
interrupts off and they execute pm_runtime_get_sync() and
pm_runtime_put_sync(), respectively, the SCI device's
power.irq_safe flags has to be used to indicate that it is safe
to execute runtime PM callbacks for this device with interrupts off.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/tty/serial/sh-sci.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux/drivers/tty/serial/sh-sci.c
===================================================================
--- linux.orig/drivers/tty/serial/sh-sci.c
+++ linux/drivers/tty/serial/sh-sci.c
@@ -1913,6 +1913,7 @@ static int __devinit sci_init_single(str
 
 		port->dev = &dev->dev;
 
+		pm_runtime_irq_safe(&dev->dev);
 		pm_runtime_enable(&dev->dev);
 	}
 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/