diff options
| author |   Benjamin Li <benjamin.li@qlogic.com> | 2007-02-26 11:06:35 -0800 |
|---|---|---|
| committer |   Jeff Garzik <jeff@garzik.org> | 2007-02-27 04:21:44 -0500 |
| commit | 04f10773535248466455ae80c1eedeb205c81e9a (patch) | |
| tree | bb56b2f7972ec5f3a332bc636117c8ad887104d9 /drivers/net/qla3xxx.c | |
| parent | qla3xxx: Changed to use netdev_alloc_skb() from dev_alloc_skb (diff) | |
| download | linux-dev-04f10773535248466455ae80c1eedeb205c81e9a.tar.xz linux-dev-04f10773535248466455ae80c1eedeb205c81e9a.zip | |
qla3xxx: Fix deadlock issue on error paths
1) Fix deadlock issue when in QL_RESET_ACTIVE state and traversing
through the Link State Machine
2) Fix deadlock issue when ethtool would call ql_get_settings()
3) Fix deadlock issue when adaptor is ifup'ed but adaptor fails to initialize
Signed-off-by: Benjamin Li <benjamin.li@qlogic.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/qla3xxx.c')
| -rwxr-xr-x | drivers/net/qla3xxx.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c index 77fc77ff1505..df18aada17a7 100755 --- a/drivers/net/qla3xxx.c +++ b/drivers/net/qla3xxx.c @@ -1388,6 +1388,8 @@ static void ql_link_state_machine(struct ql3_adapter *qdev) printk(KERN_INFO PFX "%s: Reset in progress, skip processing link " "state.\n", qdev->ndev->name); + + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); return; } @@ -1519,8 +1521,10 @@ static int ql_get_auto_cfg_status(struct ql3_adapter *qdev) spin_lock_irqsave(&qdev->hw_lock, hw_flags); if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK, (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) * - 2) << 7)) + 2) << 7)) { + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); return 0; + } status = ql_is_auto_cfg(qdev); ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK); spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); @@ -1534,8 +1538,10 @@ static u32 ql_get_speed(struct ql3_adapter *qdev) spin_lock_irqsave(&qdev->hw_lock, hw_flags); if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK, (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) * - 2) << 7)) + 2) << 7)) { + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); return 0; + } status = ql_get_link_speed(qdev); ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK); spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); @@ -1549,8 +1555,10 @@ static int ql_get_full_dup(struct ql3_adapter *qdev) spin_lock_irqsave(&qdev->hw_lock, hw_flags); if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK, (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) * - 2) << 7)) + 2) << 7)) { + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); return 0; + } status = ql_is_link_full_dup(qdev); ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK); spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); @@ -3294,6 +3302,7 @@ static int ql_adapter_up(struct ql3_adapter *qdev) err_init: ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); err_lock: + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); free_irq(qdev->pdev->irq, ndev); err_irq: if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) { |