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Subject[PATCH 2/2] iommu/vt-d: Adjsut the return value of the parse_ioapics_under_ir
Date
Adjust the return value of parse_ioapics_under_ir as "-1" representing
failure and "0" representing succcess. Just make it consistent with other
function implementation, and we can judge if calling is successfull by
if (!parse_ioapics_under_ir()) style.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
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 37b93f5..0f441b7 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -672,7 +672,7 @@ 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;
}
@@ -918,7 +918,7 @@ static int __init parse_ioapics_under_ir(void)
}

if (!ir_supported)
- return 0;
+ return -1;

for (ioapic_idx = 0; ioapic_idx < nr_ioapics; ioapic_idx++) {
int ioapic_id = mpc_ioapic_id(ioapic_idx);
@@ -930,7 +930,7 @@ static int __init parse_ioapics_under_ir(void)
}
}

- return 1;
+ return 0;
}

static int __init ir_dev_scope_init(void)
--
2.1.0


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