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iommu/vt-d: Adjust the return value of the parse_ioapics_under_ir

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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 <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Baoquan He 2015-10-22 14:00:51 +08:00 committed by Joerg Roedel
parent 344cb4e0b6
commit a13c8f27e4
1 changed files with 3 additions and 3 deletions
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6
drivers/iommu/intel_irq_remapping.c
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@ -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)