From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sat, 29 Oct 2016 19:37:01 +0000 (+0200)
Subject: thermal: hwmon: use permission-specific DEVICE_ATTR variants
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=de6b0c1acc1411a67fb89f60ee7b526066da7bfb;p=linux-beck.git

thermal: hwmon: use permission-specific DEVICE_ATTR variants

Use DEVICE_ATTR_RO for read only attributes.  This simplifies the
source code, improves readbility, and reduces the chance of
inconsistencies.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@ro@
declarer name DEVICE_ATTR;
identifier x,x_show;
@@

DEVICE_ATTR(x, \(0444\|S_IRUGO\), x_show, NULL);

@script:ocaml@
x << ro.x;
x_show << ro.x_show;
@@

if not (x^"_show" = x_show) then Coccilib.include_match false

@@
declarer name DEVICE_ATTR_RO;
identifier ro.x,ro.x_show;
@@

- DEVICE_ATTR(x, \(0444\|S_IRUGO\), x_show, NULL);
+ DEVICE_ATTR_RO(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---

diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index c41c7742903a..8c45de6a9140 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -64,7 +64,7 @@ name_show(struct device *dev, struct device_attribute *attr, char *buf)
 	struct thermal_hwmon_device *hwmon = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", hwmon->type);
 }
-static DEVICE_ATTR(name, 0444, name_show, NULL);
+static DEVICE_ATTR_RO(name);
 
 static ssize_t
 temp_input_show(struct device *dev, struct device_attribute *attr, char *buf)