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hw/arm/smmu-common: a fix to smmu_find_smmu_pcibus 

Make sure a null SMMUPciBus is returned in case we were
not able to identify a pci bus matching the @bus_num.

This matches the fix done on intel iommu in commit:
a2e1cd41cc

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20200226172628.17449-1-eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Eric Auger 2020-03-05 16:09:14 +00:00 committed by Peter Maydell
parent 41a4bf1fea
commit a2d3b8f24c
1 changed files with 1 additions and 0 deletions
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hw/arm/smmu-common.c
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@ -301,6 +301,7 @@ SMMUPciBus *smmu_find_smmu_pcibus(SMMUState *s, uint8_t bus_num)
return smmu_pci_bus;
}
}
smmu_pci_bus = NULL;
}
return smmu_pci_bus;
}