From: Liu Yi L <[email protected]> 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: [email protected] Cc: Kevin Tian <[email protected]> Cc: Jacob Pan <[email protected]> Cc: Peter Xu <[email protected]> Cc: Yi Sun <[email protected]> Signed-off-by: Liu Yi L <[email protected]> Signed-off-by: Yi Sun <[email protected]> Message-Id: <[email protected]> Reviewed-by: Peter Xu <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> --- 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 ee06993675..609b80750a 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; } -- MST
