From 9633e63bb1d82c02950983d5d3317e6656b11c8e Mon Sep 17 00:00:00 2001 From: Holger Eitzenberger Date: Wed, 17 Nov 2010 15:43:52 +0000 Subject: [PATCH] e1000e: fix double initialization in blink path The kernel goes BUG() at the time 'ethtool -p eth0 3' comes back, which is due to adapter->led_blink_task initialized several times. At the time it is still running this results in a corrupted task_list of the associated workqueue. The fix is to move the workqueue initialization to the probe function instead. Signed-off-by: Holger Eitzenberger Reviewed-by: Jesse Brandeburg Tested-by: Emil Tantilov Signed-off-by: Jeff Kirsher --- drivers/net/e1000e/e1000.h | 1 + drivers/net/e1000e/ethtool.c | 3 +-- drivers/net/e1000e/netdev.c | 1 + 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index fdc67fead4ea..3d9366ffd16e 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -482,6 +482,7 @@ extern const char e1000e_driver_version[]; extern void e1000e_check_options(struct e1000_adapter *adapter); extern void e1000e_set_ethtool_ops(struct net_device *netdev); +extern void e1000e_led_blink_task(struct work_struct *work); extern int e1000e_up(struct e1000_adapter *adapter); extern void e1000e_down(struct e1000_adapter *adapter); diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 3612900b3bfe..5c6bc6ac069c 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1846,7 +1846,7 @@ static int e1000_set_wol(struct net_device *netdev, /* bit defines for adapter->led_status */ #define E1000_LED_ON 0 -static void e1000e_led_blink_task(struct work_struct *work) +void e1000e_led_blink_task(struct work_struct *work) { struct e1000_adapter *adapter = container_of(work, struct e1000_adapter, led_blink_task); @@ -1878,7 +1878,6 @@ static int e1000_phys_id(struct net_device *netdev, u32 data) (hw->mac.type == e1000_pch2lan) || (hw->mac.type == e1000_82583) || (hw->mac.type == e1000_82574)) { - INIT_WORK(&adapter->led_blink_task, e1000e_led_blink_task); if (!adapter->blink_timer.function) { init_timer(&adapter->blink_timer); adapter->blink_timer.function = diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 0adcb79e6386..f8efbbbfddfb 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -5903,6 +5903,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround); INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task); INIT_WORK(&adapter->print_hang_task, e1000_print_hw_hang); + INIT_WORK(&adapter->led_blink_task, e1000e_led_blink_task); /* Initialize link parameters. User can change them with ethtool */ adapter->hw.mac.autoneg = 1; -- 2.20.1