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From: "Michael Chan" <mchan@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 1/20][BNX2]: Block MII access when ifdown.
Date: Tue, 01 May 2007 18:12:21 -0700	[thread overview]
Message-ID: <1178068341.4820.37.camel@dell> (raw)

[BNX2]: Block MII access when ifdown.

The device may be in D3hot state and should not allow MII register
access.

Signed-off-by: Michael Chan <mchan@broadcom.com>

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index f98a220..9f0a067 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -5562,6 +5562,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCGMIIREG: {
 		u32 mii_regval;
 
+		if (!netif_running(dev))
+			return -EAGAIN;
+
 		spin_lock_bh(&bp->phy_lock);
 		err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);
 		spin_unlock_bh(&bp->phy_lock);
@@ -5575,6 +5578,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
 
+		if (!netif_running(dev))
+			return -EAGAIN;
+
 		spin_lock_bh(&bp->phy_lock);
 		err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);
 		spin_unlock_bh(&bp->phy_lock);



             reply	other threads:[~2007-05-02  0:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-02  1:12 Michael Chan [this message]
2007-05-02  6:58 ` [PATCH 1/20][BNX2]: Block MII access when ifdown Jeff Garzik

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