hwmon: (pmbus/max8688) Accept negative page register values

[ Upstream commit a46f8cd ] 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: da8e48a ("hwmon: (pmbus) Always call _pmbus_read_byte in core driver") Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
nemunaire · May 30, 2018 · 68f70a8 · 68f70a8
1 parent 92a1e6a
commit 68f70a8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/hwmon/pmbus/max8688.c b/drivers/hwmon/pmbus/max8688.c
@@ -44,7 +44,7 @@ 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) {