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path: root/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/acpi.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/acpi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index 8c8880b44827..a7cea0a55b35 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -357,6 +357,11 @@ int iwl_acpi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc)
}
mcc_val = wifi_pkg->package.elements[1].integer.value;
+ if (mcc_val != BIOS_MCC_CHINA) {
+ ret = -EINVAL;
+ IWL_DEBUG_RADIO(fwrt, "ACPI WRDD is supported only for CN\n");
+ goto out_free;
+ }
mcc[0] = (mcc_val >> 8) & 0xff;
mcc[1] = mcc_val & 0xff;