netdev - [PATCH 3.3.0] phy:icplus:fix Auto Power Saving in ip101a_config

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Date:	Mon,  2 Apr 2012 11:02:09 +0100
From:	Srinivas KANDAGATLA <srinivas.kandagatla@...com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, peppe.cavallaro@...com,
	srinivas.kandagatla@...com
Subject: [PATCH 3.3.0] phy:icplus:fix Auto Power Saving in ip101a_config_init.

From: Srinivas Kandagatla <srinivas.kandagatla@...com>

This patch fixes Auto Power Saving configuration in ip101a_config_init
which was broken as there is no phy register write followed after
setting IP101A_APS_ON flag.

This patch also fixes the return value of ip101a_config_init.

Without this patch ip101a_config_init returns 2 which is not an error
accroding to IS_ERR and the mac driver will continue accessing 2 as
valid pointer to phy_dev resulting in memory fault.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...com>
---
Hi All, 
This patch fixes broken ip101a_config_init in icplus.c.

Thanks,
srini

 drivers/net/phy/icplus.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c
index 0856e1b..f08c85a 100644
--- a/drivers/net/phy/icplus.c
+++ b/drivers/net/phy/icplus.c
@@ -162,7 +162,8 @@ static int ip101a_g_config_init(struct phy_device *phydev)
 	/* Enable Auto Power Saving mode */
 	c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS);
 	c |= IP101A_G_APS_ON;
-	return c;
+
+	return phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c);
 }
 
 static int ip175c_read_status(struct phy_device *phydev)
-- 
1.7.0.4

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