From 1442a9a9f2e441b15393c2d89286303b103a57e8 Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Mon, 18 Sep 2017 14:39:26 +0300
Subject: [PATCH] iwlwifi: mvm: return -ENODATA when reading the temperature
with the FW down
Git-commit: 1442a9a9f2e441b15393c2d89286303b103a57e8
Patch-mainline: v4.14-rc6
References: FATE#322675
It seems that libsensors treats -EIO as a special non-recoverable
failure when it tries to read the temperature while the firmware is
not running. To solve that, change the error code to a milder
-ENODATA.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196941
Fixes: c221daf219b1 ("iwlwifi: mvm: add registration to thermal zone")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 4d907f60bce9..1232f63278eb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -631,7 +631,7 @@ static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device,
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) {
- ret = -EIO;
+ ret = -ENODATA;
goto out;
}
--
2.13.6