commit 4e157f08a01f6395a43d10630fb3a629d90a02bc
author Zhu Yi <yi.zhu@intel.com> Thu Jul 12 16:09:32 2007 +0800
committer John W. Linville <linville@tuxdriver.com> Tue Jul 17 21:56:17 2007 -0400
tree 50be542bc5f2d5c66ba3628e41c39aee82d6b234
parent 9f3b2416fec56de34408eafbef19bf8ec9a81493

[PATCH] Fix ipw2200 set wrong power parameter causing firmware error

The power mode can only be set 0~5 to firmware. Otherwise there will be a
firmware error generated. This patch fixed the invalid power mode requested
by driver.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2200.c

diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index aa32a97..4b5ec36 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -2506,7 +2506,7 @@
 		break;
 	}
 
-	param = cpu_to_le32(mode);
+	param = cpu_to_le32(param);
 	return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
 				&param);
 }
@@ -9568,6 +9568,7 @@
 		priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
 	else
 		priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
+
 	err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
 	if (err) {
 		IPW_DEBUG_WX("failed setting power mode.\n");
@@ -9604,22 +9605,19 @@
 	struct ipw_priv *priv = ieee80211_priv(dev);
 	int mode = *(int *)extra;
 	int err;
+
 	mutex_lock(&priv->mutex);
-	if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
+	if ((mode < 1) || (mode > IPW_POWER_LIMIT))
 		mode = IPW_POWER_AC;
-		priv->power_mode = mode;
-	} else {
-		priv->power_mode = IPW_POWER_ENABLED | mode;
-	}
 
-	if (priv->power_mode != mode) {
+	if (IPW_POWER_LEVEL(priv->power_mode) != mode) {
 		err = ipw_send_power_mode(priv, mode);
-
 		if (err) {
 			IPW_DEBUG_WX("failed setting power mode.\n");
 			mutex_unlock(&priv->mutex);
 			return err;
 		}
+		priv->power_mode = IPW_POWER_ENABLED | mode;
 	}
 	mutex_unlock(&priv->mutex);
 	return 0;