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[PATCH v1 1/2] intel_iommu: a fix to vtd_find_as_from_bus_num()
From: |
Liu Yi L |
Subject: |
[PATCH v1 1/2] intel_iommu: a fix to vtd_find_as_from_bus_num() |
Date: |
Fri, 3 Jan 2020 21:28:05 +0800 |
Ensure the return value of vtd_find_as_from_bus_num() is NULL by
enforcing vtd_bus=NULL. This would help caller of vtd_find_as_from_bus_num()
to decide if any further operation on the returned vtd_bus.
Cc: Kevin Tian <address@hidden>
Cc: Jacob Pan <address@hidden>
Cc: Peter Xu <address@hidden>
Cc: Yi Sun <address@hidden>
Signed-off-by: Liu Yi L <address@hidden>
Signed-off-by: Yi Sun <address@hidden>
---
hw/i386/intel_iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 43c94b9..00ebae4 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -948,6 +948,7 @@ static VTDBus *vtd_find_as_from_bus_num(IntelIOMMUState *s,
uint8_t bus_num)
return vtd_bus;
}
}
+ vtd_bus = NULL;
}
return vtd_bus;
}
--
2.7.4