[PATCH] hwmon: (f71882fg) Mark expected switch fall-through

["Gustavo A. R. Silva" <gustavo@embeddedor.com>]

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/hwmon/f71882fg.c: In function ‘f71882fg_probe’:
drivers/hwmon/f71882fg.c:2457:33: warning: this statement may fall through [-Wimplicit-fallthrough=]
    data->auto_point_temp_signed = 1;
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
drivers/hwmon/f71882fg.c:2459:3: note: here
   case f71889fg:
   ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/hwmon/f71882fg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index ca54ce5c8e10..83023798e489 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -2455,7 +2455,7 @@ static int f71882fg_probe(struct platform_device *pdev)
 		case f71869a:
 			/* These always have signed auto point temps */
 			data->auto_point_temp_signed = 1;
-			/* Fall through to select correct fan/pwm reg bank! */
+			/* Fall through - to select correct fan/pwm reg bank! */
 		case f71889fg:
 		case f71889ed:
 		case f71889a:
-- 
2.20.1