iwlwifi: give correct return information for tx power debugfs

Return -EAGAIN when request tx power information and uCode is not ready;
so it will not confuse with tx power information not available.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-04-26 16:08:27 -07:00 committed by Reinette Chatre
parent 65d1f89682
commit 0af0d04b8d

View File

@ -1225,7 +1225,7 @@ static ssize_t iwl_dbgfs_chain_tx_power_read(struct file *file,
struct statistics_tx *tx;
if (!iwl_is_alive(priv))
pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
return -EAGAIN;
else {
tx = &priv->statistics.tx;
if (tx->tx_power.ant_a ||