bnx2: Check if_running() before touching chip registers.
Add this check to bnx2_netif_stop() and bnx2_vlan_rx_register() to
prevent bus lockups on some systems when the chip is in low power state.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index e75b6e9..9cfd460 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -619,6 +619,9 @@
int i;
atomic_inc(&bp->intr_sem);
+ if (!netif_running(bp->dev))
+ return;
+
bnx2_disable_int(bp);
for (i = 0; i < bp->irq_nvecs; i++)
synchronize_irq(bp->irq_tbl[i].vector);
@@ -6254,9 +6257,14 @@
{
struct bnx2 *bp = netdev_priv(dev);
- bnx2_netif_stop(bp);
+ if (netif_running(dev))
+ bnx2_netif_stop(bp);
bp->vlgrp = vlgrp;
+
+ if (!netif_running(dev))
+ return;
+
bnx2_set_rx_mode(dev);
if (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN)
bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);