[PATCH 2/6] PM / devfreq: Modify the device name as devfreq[X] for sysfs

[Chanwoo Choi]

This patch modifies the device name as devfreq[X] for sysfs by using the 
'devfreq'
prefix word instead of separate device name. On user-space aspect, user would
find the some devfreq drvier with 'devfreq[X]' pattern. So, this patch modify 
the
device name as following:
- /sys/class/devfreq/[non-standard device name] -> /sys/class/devfreq/devfreq[X]

Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com>
---
 drivers/devfreq/devfreq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index dfef5ea57e4c..4d2b7e5b8d3c 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -527,6 +527,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
 {
        struct devfreq *devfreq;
        struct devfreq_governor *governor;
+       static atomic_t devfreq_no = ATOMIC_INIT(-1);
        int err = 0;
 
        if (!dev || !profile || !governor_name) {
@@ -568,7 +569,8 @@ struct devfreq *devfreq_add_device(struct device *dev,
                mutex_lock(&devfreq->lock);
        }
 
-       dev_set_name(&devfreq->dev, "%s", dev_name(dev));
+       dev_set_name(&devfreq->dev, "devfreq%lu",
+                       (unsigned long)atomic_inc_return(&devfreq_no));
        err = device_register(&devfreq->dev);
        if (err) {
                mutex_unlock(&devfreq->lock);
-- 
1.9.1