[SCSI] qla2xxx: Correct MSI-X vector allocation for single queue mode.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 789fc57..e28ad81 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1868,6 +1868,7 @@
static int
qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
{
+#define MIN_MSIX_COUNT 2
int i, ret;
struct msix_entry *entries;
struct qla_msix_entry *qentry;
@@ -1883,12 +1884,16 @@
ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
if (ret) {
+ if (ret < MIN_MSIX_COUNT)
+ goto msix_failed;
+
qla_printk(KERN_WARNING, ha,
"MSI-X: Failed to enable support -- %d/%d\n"
" Retry with %d vectors\n", ha->msix_count, ret, ret);
ha->msix_count = ret;
ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
if (ret) {
+msix_failed:
qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
" support, giving up -- %d/%d\n",
ha->msix_count, ret);