[PATCH 6.12 092/567] hwmon: (ltc4282): Fix reset_history file permissions

Greg Kroah-Hartman
2026-01-06T17:19:21Z

From: Nuno Sá <nuno.sa@analog.com>

[ Upstream commit b3db91c3bfea69a6c6258fea508f25a59c0feb1a ]

The reset_history attributes are write only. Hence don't report them as
readable just to return -EOPNOTSUPP later on.

Fixes: cbc29538dbf7 ("hwmon: Add driver for LTC4282")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20251219-ltc4282-fix-reset-history-v1-1-8eab974c124b@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/ltc4282.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c
index 953dfe2bd166..d98c57918ce3 100644
--- a/drivers/hwmon/ltc4282.c
+++ b/drivers/hwmon/ltc4282.c
@@ -1016,8 +1016,9 @@ static umode_t ltc4282_in_is_visible(const struct ltc4282_state *st, u32 attr)
case hwmon_in_max:
case hwmon_in_min:
case hwmon_in_enable:
- case hwmon_in_reset_history:
return 0644;
+ case hwmon_in_reset_history:
+ return 0200;
default:
return 0;
}
@@ -1036,8 +1037,9 @@ static umode_t ltc4282_curr_is_visible(u32 attr)
return 0444;
case hwmon_curr_max:
case hwmon_curr_min:
- case hwmon_curr_reset_history:
return 0644;
+ case hwmon_curr_reset_history:
+ return 0200;
default:
return 0;
}
@@ -1055,8 +1057,9 @@ static umode_t ltc4282_power_is_visible(u32 attr)
return 0444;
case hwmon_power_max:
case hwmon_power_min:
- case hwmon_power_reset_history:
return 0644;
+ case hwmon_power_reset_history:
+ return 0200;
default:
return 0;
}
--
2.51.0