From a46f8cd696624ef757be0311eb28f119c36778e8 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 10 Mar 2018 17:49:47 -0800
Subject: [PATCH] hwmon: (pmbus/max8688) Accept negative page register values
Git-commit: a46f8cd696624ef757be0311eb28f119c36778e8
Patch-mainline: v4.17-rc1
References: bsc#1051510
A negative page register value means that no page needs to be
selected. This is used by status register evaluations and needs
to be accepted.
Fixes: da8e48ab483e1 ("hwmon: (pmbus) Always call _pmbus_read_byte in core driver")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/hwmon/pmbus/max8688.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/pmbus/max8688.c b/drivers/hwmon/pmbus/max8688.c
index dd4883a19045..e951f9b87abb 100644
--- a/drivers/hwmon/pmbus/max8688.c
+++ b/drivers/hwmon/pmbus/max8688.c
@@ -45,7 +45,7 @@ static int max8688_read_word_data(struct i2c_client *client, int page, int reg)
{
int ret;
- if (page)
+ if (page > 0)
return -ENXIO;
switch (reg) {
--
2.18.0