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[SCSI] libsas: fix lockdep issue with ATA

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lockdep noticed that with ATA support the port->dev_list_lock was
entangled at irq context, so it now needs to become IRQ safe

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley
2007-07-16 13:15:51 -05:00
committed by James Bottomley
parent 0f05df8b3b
commit 9d720d82dc
2 changed files with 10 additions and 10 deletions
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12
drivers/scsi/libsas/sas_expander.c
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@@ -677,9 +677,9 @@ static struct domain_device *sas_ex_discover_end_dev(
child->rphy = rphy;
spin_lock(&parent->port->dev_list_lock);
spin_lock_irq(&parent->port->dev_list_lock);
list_add_tail(&child->dev_list_node, &parent->port->dev_list);
spin_unlock(&parent->port->dev_list_lock);
spin_unlock_irq(&parent->port->dev_list_lock);
res = sas_discover_sata(child);
if (res) {
@@ -701,9 +701,9 @@ static struct domain_device *sas_ex_discover_end_dev(
child->rphy = rphy;
sas_fill_in_rphy(child, rphy);
spin_lock(&parent->port->dev_list_lock);
spin_lock_irq(&parent->port->dev_list_lock);
list_add_tail(&child->dev_list_node, &parent->port->dev_list);
spin_unlock(&parent->port->dev_list_lock);
spin_unlock_irq(&parent->port->dev_list_lock);
res = sas_discover_end_dev(child);
if (res) {
@@ -816,9 +816,9 @@ static struct domain_device *sas_ex_discover_expander(
sas_fill_in_rphy(child, rphy);
sas_rphy_add(rphy);
spin_lock(&parent->port->dev_list_lock);
spin_lock_irq(&parent->port->dev_list_lock);
list_add_tail(&child->dev_list_node, &parent->port->dev_list);
spin_unlock(&parent->port->dev_list_lock);
spin_unlock_irq(&parent->port->dev_list_lock);
res = sas_discover_expander(child);
if (res) {