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iwlwifi: acpi: fill in SAR tables with defaults 

If the tables we get in the iwl_sar_set_profile() is smaller than the
revision we support, we need to fill the values with 0.  Make sure
that's the case.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.7fb9716db7ba.I75541846e0720f80695186ba39398133c8758280@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Luca Coelho 2021-08-19 18:40:27 +03:00
parent c5b42c674a
commit 40063f6028
1 changed files with 13 additions and 8 deletions
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9
drivers/net/wireless/intel/iwlwifi/fw/acpi.c
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@ -420,8 +420,12 @@ static int iwl_sar_set_profile(union acpi_object *table,
* The table from ACPI is flat, but we store it in a
* structured array.
*/
for (i = 0; i < num_chains; i++) {
for (j = 0; j < num_sub_bands; j++) {
for (i = 0; i < ACPI_SAR_NUM_CHAINS_REV2; i++) {
for (j = 0; j < ACPI_SAR_NUM_SUB_BANDS_REV2; j++) {
/* if we don't have the values, use the default */
if (i >= num_chains || j >= num_sub_bands) {
profile->chains[i].subbands[j] = 0;
} else {
if (table[idx].type != ACPI_TYPE_INTEGER ||
table[idx].integer.value > U8_MAX)
return -EINVAL;
@ -432,6 +436,7 @@ static int iwl_sar_set_profile(union acpi_object *table,
idx++;
}
}
}
/* Only if all values were valid can the profile be enabled */
profile->enabled = enabled;