hwmon: (jz4740) Staticise jz4740_hwmon_driver

It is not used outside this driver so no need to make the symbol global.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index 3d7e590..5253d23 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -203,7 +203,7 @@
 	return 0;
 }
 
-struct platform_driver jz4740_hwmon_driver = {
+static struct platform_driver jz4740_hwmon_driver = {
 	.probe	= jz4740_hwmon_probe,
 	.remove = __devexit_p(jz4740_hwmon_remove),
 	.driver = {