Staging: samsung-laptop: fix up my fixup for some sysfs attribute per…

…missions

They should be writable by root, not readable.
Doh, stupid me with the wrong flags.

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/samsung-laptop/samsung-laptop.c

@@ -356,7 +356,7 @@ static ssize_t set_silent_state(struct device *dev,
 	}
 	return count;
 }
-static DEVICE_ATTR(silent, S_IRUSR | S_IRUGO,
+static DEVICE_ATTR(silent, S_IWUSR | S_IRUGO,
 		   get_silent_state, set_silent_state);