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clocksource: Fix permissions for available_clocksource
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. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -474,7 +474,7 @@ sysfs_show_available_clocksources(struct sys_device *dev, char *buf)
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static SYSDEV_ATTR(current_clocksource, 0600, sysfs_show_current_clocksources,
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sysfs_override_clocksource);
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static SYSDEV_ATTR(available_clocksource, 0600,
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static SYSDEV_ATTR(available_clocksource, 0400,
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sysfs_show_available_clocksources, NULL);
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static struct sysdev_class clocksource_sysclass = {
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