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[SCSI] qla2xxx: Handle IRQ-0 assignments by the system. 

No restriction should be placed on the IRQ number assigned
to a given ISP.  Original code incorrectly assumed a
non-zero IRQ number assignment by the system.  In these
circumstances the proper freeing of the IRQ (via free_irq())
would not take place.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Andrew Vasquez 2007-01-29 10:22:20 -08:00 committed by James Bottomley
parent a8488abefa
commit d88021a671
2 changed files with 6 additions and 3 deletions
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1
drivers/scsi/qla2xxx/qla_def.h
View File

@ -2097,6 +2097,7 @@ typedef struct scsi_qla_host {
uint32_t enable_lip_full_login :1;
uint32_t enable_target_reset :1;
uint32_t enable_led_scheme :1;
uint32_t inta_enabled :1;
uint32_t msi_enabled :1;
uint32_t msix_enabled :1;
uint32_t disable_serdes :1;

8
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -1725,12 +1725,14 @@ qla2x00_request_irqs(scsi_qla_host_t *ha)
skip_msix:
ret = request_irq(ha->pdev->irq, ha->isp_ops.intr_handler,
IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
if (ret) {
if (!ret) {
ha->flags.inta_enabled = 1;
ha->host->irq = ha->pdev->irq;
} else {
qla_printk(KERN_WARNING, ha,
"Failed to reserve interrupt %d already in use.\n",
ha->pdev->irq);
}
ha->host->irq = ha->pdev->irq;
return ret;
}
@ -1741,6 +1743,6 @@ qla2x00_free_irqs(scsi_qla_host_t *ha)
if (ha->flags.msix_enabled)
qla24xx_disable_msix(ha);
else if (ha->host->irq)
else if (ha->flags.inta_enabled)
free_irq(ha->host->irq, ha);
}