| From foo@baz Sun May 27 17:33:38 CEST 2018 |
| From: Guenter Roeck <linux@roeck-us.net> |
| Date: Sat, 10 Mar 2018 17:49:47 -0800 |
| Subject: hwmon: (pmbus/max8688) Accept negative page register values |
| |
| From: Guenter Roeck <linux@roeck-us.net> |
| |
| [ Upstream commit a46f8cd696624ef757be0311eb28f119c36778e8 ] |
| |
| 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> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| drivers/hwmon/pmbus/max8688.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/hwmon/pmbus/max8688.c |
| +++ b/drivers/hwmon/pmbus/max8688.c |
| @@ -45,7 +45,7 @@ static int max8688_read_word_data(struct |
| { |
| int ret; |
| |
| - if (page) |
| + if (page > 0) |
| return -ENXIO; |
| |
| switch (reg) { |
