From: Huacai Chen chenhc@lemote.com
[ Upstream commit 45dc8f2d9c94ed74a5e31e63e9136a19a7e16081 ]
Commit 4fa183455988 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/ pci_free_irq_vectors calls.") use pci_alloc_irq_vectors() to replace pci_enable_msi() but it didn't handle the return value correctly. This bug make qla2x00 always fail to setup MSI if MSI-X fail, so fix it.
BTW, improve the log message of return value in qla2x00_request_irqs() to avoid confusion.
Fixes: 4fa183455988 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.") Cc: Michael Hernandez michael.hernandez@cavium.com Link: https://lore.kernel.org/r/1574314847-14280-1-git-send-email-chenhc@lemote.co... Signed-off-by: Huacai Chen chenhc@lemote.com Acked-by: Himanshu Madhani hmadhani@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_isr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index b3766b1879e3..7c5f2736ebee 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3625,7 +3625,7 @@ qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) skip_msix:
ql_log(ql_log_info, vha, 0x0037, - "Falling back-to MSI mode -%d.\n", ret); + "Falling back-to MSI mode -- ret=%d.\n", ret);
if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && @@ -3633,13 +3633,13 @@ qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) goto skip_msi;
ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI); - if (!ret) { + if (ret > 0) { ql_dbg(ql_dbg_init, vha, 0x0038, "MSI: Enabled.\n"); ha->flags.msi_enabled = 1; } else ql_log(ql_log_warn, vha, 0x0039, - "Falling back-to INTa mode -- %d.\n", ret); + "Falling back-to INTa mode -- ret=%d.\n", ret); skip_msi:
/* Skip INTx on ISP82xx. */