diff options
| author | Johannes Berg <[email protected]> | 2022-05-17 12:05:08 +0300 |
|---|---|---|
| committer | Johannes Berg <[email protected]> | 2022-05-18 12:53:53 +0200 |
| commit | d1f6530c3e373ddd7c76b05646052a27eead14ad (patch) | |
| tree | 0b28709e3e606c69c34dba574c53b53fb5931ec6 | |
| parent | 51e073c23b46236d8dfbc1cbf7d95b0a5ff6e6e7 (diff) | |
iwlwifi: fw: init SAR GEO table only if data is present
When no table data was read from ACPI, then filling the data
and returning success here will fill zero values, which means
transmit power will be limited to 0 dBm. This is clearly not
intended.
Return an error from iwl_sar_geo_init() if there's no data to
fill into the command structure.
Cc: [email protected]
Signed-off-by: Johannes Berg <[email protected]>
Fixes: 78a19d5285d9 ("iwlwifi: mvm: Read the PPAG and SAR tables at INIT stage")
Signed-off-by: Gregory Greenman <[email protected]>
Link: https://lore.kernel.org/r/20220517120044.bc45923b74e9.Id2b4362234b7f8ced82c591b95d4075dd2ec12f4@changeid
Signed-off-by: Johannes Berg <[email protected]>
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index 33aae639ad37..e6d64152c81a 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -937,6 +937,9 @@ int iwl_sar_geo_init(struct iwl_fw_runtime *fwrt, { int i, j; + if (!fwrt->geo_enabled) + return -ENODATA; + if (!iwl_sar_geo_support(fwrt)) return -EOPNOTSUPP; |