From: Xiang Chen <chenxian...@hisilicon.com>
This patch adds support to clean-up allocated IRQs and
kill tasklets when probe fails and for driver removal.
Signed-off-by: Xiang Chen <chenxian...@hisilicon.com>
Signed-off-by: John Garry <john.ga...@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 96 +++++++++++++++++-----------------
1 file changed, 49 insertions(+), 47 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index bcbc16e..9eea0b4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -3290,97 +3290,92 @@ static int interrupt_init_v2_hw(struct hisi_hba
*hisi_hba)
{
struct platform_device *pdev = hisi_hba->platform_dev;
struct device *dev = &pdev->dev;
- int i, irq, rc, irq_map[128];
-
+ int irq, rc, irq_map[128];
+ int i, phy_no, fatal_no, queue_no, k;
for (i = 0; i < 128; i++)
irq_map[i] = platform_get_irq(pdev, i);
for (i = 0; i < HISI_SAS_PHY_INT_NR; i++) {
- int idx = i;
-
- irq = irq_map[idx + 1]; /* Phy up/down is irq1 */
- if (!irq) {
- dev_err(dev, "irq init: fail map phy interrupt %d\n",
- idx);
- return -ENOENT;
- }
-
+ irq = irq_map[i + 1]; /* Phy up/down is irq1 */
rc = devm_request_irq(dev, irq, phy_interrupts[i], 0,
DRV_NAME " phy", hisi_hba);
if (rc) {
dev_err(dev, "irq init: could not request "
"phy interrupt %d, rc=%d\n",
irq, rc);
- return -ENOENT;
+ rc = -ENOENT;
+ goto free_phy_int_irqs;
}
}
- for (i = 0; i < hisi_hba->n_phy; i++) {
- struct hisi_sas_phy *phy = &hisi_hba->phy[i];
- int idx = i + 72; /* First SATA interrupt is irq72 */
-
- irq = irq_map[idx];
- if (!irq) {
- dev_err(dev, "irq init: fail map phy interrupt %d\n",
- idx);
- return -ENOENT;
- }
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ irq = irq_map[phy_no + 72];
rc = devm_request_irq(dev, irq, sata_int_v2_hw, 0,
DRV_NAME " sata", phy);
if (rc) {
dev_err(dev, "irq init: could not request "
"sata interrupt %d, rc=%d\n",
irq, rc);
- return -ENOENT;
+ rc = -ENOENT;
+ goto free_sata_int_irqs;
}
}
- for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++) {
- int idx = i;
-
- irq = irq_map[idx + 81];
- if (!irq) {
- dev_err(dev, "irq init: fail map fatal interrupt %d\n",
- idx);
- return -ENOENT;
- }
-
- rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
+ for (fatal_no = 0; fatal_no < HISI_SAS_FATAL_INT_NR; fatal_no++) {
+ irq = irq_map[fatal_no + 81];
+ rc = devm_request_irq(dev, irq, fatal_interrupts[fatal_no], 0,
DRV_NAME " fatal", hisi_hba);
if (rc) {
dev_err(dev,
"irq init: could not request fatal interrupt
%d, rc=%d\n",
irq, rc);
- return -ENOENT;
+ rc = -ENOENT;
+ goto free_fatal_int_irqs;
}
}
- for (i = 0; i < hisi_hba->queue_count; i++) {
- int idx = i + 96; /* First cq interrupt is irq96 */
- struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ for (queue_no = 0; queue_no < hisi_hba->queue_count; queue_no++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no];
struct tasklet_struct *t = &cq->tasklet;
- irq = irq_map[idx];
- if (!irq) {
- dev_err(dev,
- "irq init: could not map cq interrupt %d\n",
- idx);
- return -ENOENT;
- }
+ irq = irq_map[queue_no + 96];
rc = devm_request_irq(dev, irq, cq_interrupt_v2_hw, 0,
- DRV_NAME " cq", &hisi_hba->cq[i]);
+ DRV_NAME " cq", cq);
if (rc) {
dev_err(dev,
"irq init: could not request cq interrupt %d,
rc=%d\n",
irq, rc);
- return -ENOENT;
+ rc = -ENOENT;
+ goto free_cq_int_irqs;
}
tasklet_init(t, cq_tasklet_v2_hw, (unsigned long)cq);
}
return 0;
+
+free_cq_int_irqs:
+ for (k = 0; k < queue_no; k++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[k];
+
+ free_irq(irq_map[k + 96], cq);
+ tasklet_kill(&cq->tasklet);
+ }
+free_fatal_int_irqs:
+ for (k = 0; k < fatal_no; k++)
+ free_irq(irq_map[k + 81], hisi_hba);
+free_sata_int_irqs:
+ for (k = 0; k < phy_no; k++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[k];
+
+ free_irq(irq_map[k + 72], phy);
+ }
+free_phy_int_irqs:
+ for (k = 0; k < i; k++)
+ free_irq(irq_map[k + 1], hisi_hba);
+ return rc;
}
static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
@@ -3518,10 +3513,17 @@ static int hisi_sas_v2_remove(struct platform_device
*pdev)
{
struct sas_ha_struct *sha = platform_get_drvdata(pdev);
struct hisi_hba *hisi_hba = sha->lldd_ha;
+ int i;
if (timer_pending(&hisi_hba->timer))
del_timer(&hisi_hba->timer);
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+
+ tasklet_kill(&cq->tasklet);
+ }
+
return hisi_sas_remove(pdev);
}
--
1.9.1
