From 0e973a24f02ed8c627271b013d69683b4497828d Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Mon, 12 May 2008 22:21:09 -0700 Subject: [PATCH] [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 Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 5d9a64a7879..0793aa9f161 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) { -- 2.41.1