drivers: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c
index ed71a8b..5c8b6e0 100644
--- a/drivers/hwmon/ads7828.c
+++ b/drivers/hwmon/ads7828.c
@@ -224,7 +224,7 @@
 			if (in_data & 0xF000) {
 				printk(KERN_DEBUG
 				"%s : Doesn't look like an ads7828 device\n",
-				__FUNCTION__);
+				__func__);
 				goto exit_free;
 			}
 		}