Re: [PATCH] clocksource: Fix permissions for available_clocksource

From: Heiko Carstens
Date: Sat May 03 2008 - 08:23:45 EST


On Fri, May 02, 2008 at 05:34:06PM +0200, Thomas Gleixner wrote:
> On Fri, 2 May 2008, Heiko Carstens wrote:
> > On Fri, May 02, 2008 at 04:36:37PM +0200, Thomas Gleixner wrote:
> > > On Fri, 2 May 2008, Heiko Carstens wrote:
> > > > From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
> > > >
> > > > File permissions for
> > > > /sys/devices/system/clocksource/clocksource0/available_clocksource
> > > > are 600 which allows write access. But this is in fact a read only
> > > > file. So change permissions to 400.
> > >
> > > Indeed. The question is whether we should make this 444. There is no
> > > harm, when users can read the info. Same applies for the
> > > current_clocksource entry, making it 644 should be fine.
> >
> > Sure, I can send an on-top patch for this.
>
> Yes, please.

Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
kernel/time/clocksource.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/kernel/time/clocksource.c
===================================================================
--- linux-2.6.orig/kernel/time/clocksource.c
+++ linux-2.6/kernel/time/clocksource.c
@@ -471,10 +471,10 @@ sysfs_show_available_clocksources(struct
/*
* Sysfs setup bits:
*/
-static SYSDEV_ATTR(current_clocksource, 0600, sysfs_show_current_clocksources,
+static SYSDEV_ATTR(current_clocksource, 0644, sysfs_show_current_clocksources,
sysfs_override_clocksource);

-static SYSDEV_ATTR(available_clocksource, 0400,
+static SYSDEV_ATTR(available_clocksource, 0444,
sysfs_show_available_clocksources, NULL);

static struct sysdev_class clocksource_sysclass = {
--
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