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scsi: hisi_sas: Fix IRQ checks 

[ Upstream commit 6c11dc060427e07ca144eacaccd696106b361b06 ]

Commit df2d8213d9 ("hisi_sas: use platform_get_irq()") failed to take
into account that irq_of_parse_and_map() and platform_get_irq() have a
different way of indicating an error: the former returns 0 and the latter
returns a negative error code. Fix up the IRQ checks!

Link: https://lore.kernel.org/r/810f26d3-908b-1d6b-dc5c-40019726baca@omprussia.ru
Fixes: df2d8213d9 ("hisi_sas: use platform_get_irq()")
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sergey Shtylyov 2021-04-03 23:43:55 +03:00 committed by Greg Kroah-Hartman
parent 6adac4efe7
commit ae0cadd35d
1 changed files with 3 additions and 3 deletions
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6
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
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@ -1645,7 +1645,7 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
idx = i * HISI_SAS_PHY_INT_NR;
for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) {
irq = platform_get_irq(pdev, idx);
if (!irq) {
if (irq < 0) {
dev_err(dev, "irq init: fail map phy interrupt %d\n",
idx);
return -ENOENT;
@ -1664,7 +1664,7 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR;
for (i = 0; i < hisi_hba->queue_count; i++, idx++) {
irq = platform_get_irq(pdev, idx);
if (!irq) {
if (irq < 0) {
dev_err(dev, "irq init: could not map cq interrupt %d\n",
idx);
return -ENOENT;
@ -1682,7 +1682,7 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count;
for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) {
irq = platform_get_irq(pdev, idx);
if (!irq) {
if (irq < 0) {
dev_err(dev, "irq init: could not map fatal interrupt %d\n",
idx);
return -ENOENT;