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[SCSI] be2iscsi: Fix to handle request_irq failure

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This patch handles request_irq failures  by properly cleaning up

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jayamohan Kallickal 2010-07-22 04:23:55 +05:30 committed by James Bottomley
parent 238f6b7255
commit 4f5af07e1b
1 changed files with 20 additions and 1 deletions
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21
drivers/scsi/be2iscsi/be_main.c
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@ -616,7 +616,7 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
struct pci_dev *pcidev = phba->pcidev;
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
int ret, msix_vec, i = 0;
int ret, msix_vec, i, j;
char desc[32];
phwi_ctrlr = phba->phwi_ctrlr;
@ -628,10 +628,25 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
msix_vec = phba->msix_entries[i].vector;
ret = request_irq(msix_vec, be_isr_msix, 0, desc,
&phwi_context->be_eq[i]);
if (ret) {
shost_printk(KERN_ERR, phba->shost,
"beiscsi_init_irqs-Failed to"
"register msix for i = %d\n", i);
if (!i)
return ret;
goto free_msix_irqs;
}
}
msix_vec = phba->msix_entries[i].vector;
ret = request_irq(msix_vec, be_isr_mcc, 0, "beiscsi_msix_mcc",
&phwi_context->be_eq[i]);
if (ret) {
shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
"Failed to register beiscsi_msix_mcc\n");
i++;
goto free_msix_irqs;
}
} else {
ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
"beiscsi", phba);
@ -642,6 +657,10 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
}
}
return 0;
free_msix_irqs:
for (j = i - 1; j == 0; j++)
free_irq(msix_vec, &phwi_context->be_eq[j]);
return ret;
}
static void hwi_ring_cq_db(struct beiscsi_hba *phba,