From dad3e452dacd3c6c637e2f7c6469556cc8ffcd94 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Thu, 3 May 2007 13:18:03 -0700 Subject: [PATCH] [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 Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index f98a2205a0..9f0a06722e 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); -- 2.39.5