qemu/intel_iommu-a-fix-to-vtd_find_as_from_bu.patch
Bruce Rogers b7616307b7 Accepting request 762845 from home:bfrogers:branches:Virtualization
Include SLE feature requests, misc upstream stable bug fixes, and repair Jira feature references

OBS-URL: https://build.opensuse.org/request/show/762845
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=521
2020-01-10 14:18:12 +00:00

39 lines
1.4 KiB
Diff

From: Liu Yi L <yi.l.liu@intel.com>
Date: Fri, 3 Jan 2020 21:28:05 +0800
Subject: intel_iommu: a fix to vtd_find_as_from_bus_num()
Git-commit: a2e1cd41ccfe796529abfd1b6aeb1dd4393762a2
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: qemu-stable@nongnu.org
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Message-Id: <1578058086-4288-2-git-send-email-yi.l.liu@intel.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
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 43c94b993b4ab591067676ed022a..00ebae4863cf7e49368779bd1fc4 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;
}