hwmon: VRM is not written to registers

What was true of reading the VRM value is also true of writing it: not
being a register value, it doesn't need hardware access, so we don't
need a reference to the i2c client. This allows for a minor code
cleanup. As gcc appears to be smart enough to simplify the generated
code by itself, this cleanup only affects the source code, the
generated binaries are unchanged.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index b875526..8b0c188 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -341,8 +341,7 @@
 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
 	data->vrm = simple_strtoul(buf, NULL, 10);
 	return count;
 }