From a13c8f27e4d79420ae7bcb48123fa13851026428 Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Thu, 22 Oct 2015 14:00:51 +0800 Subject: [PATCH] iommu/vt-d: Adjust the return value of the parse_ioapics_under_ir Adjust the return value of parse_ioapics_under_ir as negative value representing failure and "0" representing succcess. Just make it consistent with other function implementations, and we can judge if calling is successfull by if (!parse_ioapics_under_ir()) style. Signed-off-by: Baoquan He Signed-off-by: Joerg Roedel --- drivers/iommu/intel_irq_remapping.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index a50468e7d8c2..7843252afda8 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -690,7 +690,7 @@ static int __init intel_prepare_irq_remapping(void) if (!dmar_ir_support()) return -ENODEV; - if (parse_ioapics_under_ir() != 1) { + if (!parse_ioapics_under_ir()) { pr_info("Not enabling interrupt remapping\n"); goto error; } @@ -943,7 +943,7 @@ static int __init parse_ioapics_under_ir(void) } if (!ir_supported) - return 0; + return -ENODEV; for (ioapic_idx = 0; ioapic_idx < nr_ioapics; ioapic_idx++) { int ioapic_id = mpc_ioapic_id(ioapic_idx); @@ -955,7 +955,7 @@ static int __init parse_ioapics_under_ir(void) } } - return 1; + return 0; } static int __init ir_dev_scope_init(void) -- 2.20.1