diff options
| author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2008-05-12 22:21:09 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-05-15 16:39:28 +0100 |
| commit | 0e973a24f02ed8c627271b013d69683b4497828d (patch) | |
| tree | 7e65a3b5c33a7df404b7dc8e2df332377e4f275f /drivers/scsi/qla2xxx | |
| parent | fd9a29f03600f306acb4faf49b92ca5472f39ee8 (diff) | |
| download | op-kernel-dev-0e973a24f02ed8c627271b013d69683b4497828d.zip op-kernel-dev-0e973a24f02ed8c627271b013d69683b4497828d.tar.gz | |
[SCSI] qla2xxx: Correct locking within MSI-X interrupt handlers.
Both MSI-X vector handlers attempt to acquire the HA's
hardware_lock. This though requires that interrupts be
disabled/enabled during acquisition and release of the spinlock.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 5d9a64a..0793aa9 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1639,12 +1639,12 @@ qla24xx_msix_rsp_q(int irq, void *dev_id) ha = dev_id; reg = &ha->iobase->isp24; - spin_lock(&ha->hardware_lock); + spin_lock_irq(&ha->hardware_lock); qla24xx_process_response_queue(ha); WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); - spin_unlock(&ha->hardware_lock); + spin_unlock_irq(&ha->hardware_lock); return IRQ_HANDLED; } @@ -1663,7 +1663,7 @@ qla24xx_msix_default(int irq, void *dev_id) reg = &ha->iobase->isp24; status = 0; - spin_lock(&ha->hardware_lock); + spin_lock_irq(&ha->hardware_lock); do { stat = RD_REG_DWORD(®->host_status); if (stat & HSRX_RISC_PAUSED) { @@ -1716,7 +1716,7 @@ qla24xx_msix_default(int irq, void *dev_id) } WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); } while (0); - spin_unlock(&ha->hardware_lock); + spin_unlock_irq(&ha->hardware_lock); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && (status & MBX_INTERRUPT) && ha->flags.mbox_int) { |
