Return-path: Received: from mga02.intel.com ([134.134.136.20]:65350 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753971Ab0EJW2Y (ORCPT ); Mon, 10 May 2010 18:28:24 -0400 From: Reinette Chatre To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, ipw3945-devel@lists.sourceforge.net, Wey-Yi Guy , Reinette Chatre Subject: [PATCH 09/47] iwlwifi: give correct return information for tx power debugfs Date: Mon, 10 May 2010 15:27:40 -0700 Message-Id: <1273530498-11876-10-git-send-email-reinette.chatre@intel.com> In-Reply-To: <1273530498-11876-1-git-send-email-reinette.chatre@intel.com> References: <1273530498-11876-1-git-send-email-reinette.chatre@intel.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Wey-Yi Guy 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 Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index df34c31..06905bb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -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 || -- 1.6.3.3