From a2d3b8f24c53b3c7d4cf07cb92b2db42abf804d0 Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@redhat.com>
Date: Thu, 5 Mar 2020 16:09:14 +0000
Subject: [PATCH] hw/arm/smmu-common: a fix to smmu_find_smmu_pcibus
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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:
a2e1cd41ccfe796529abfd1b6aeb1dd4393762a2
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>
---
hw/arm/smmu-common.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 0f2573f004..67d7b2d0fd 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -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;
}