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[Qemu-stable] [PATCH 18/56] vfio: Fix broken EEH


From: Michael Roth
Subject: [Qemu-stable] [PATCH 18/56] vfio: Fix broken EEH
Date: Mon, 8 Aug 2016 16:03:49 -0500

From: Gavin Shan <address@hidden>

vfio_eeh_container_op() is the backend that communicates with
host kernel to support EEH functionality in QEMU. However, the
functon should return the value from host kernel instead of 0
unconditionally.

dwg: Specifically the problem occurs for the handful of EEH
sub-operations which can return a non-zero, non-error result.

Signed-off-by: Gavin Shan <address@hidden>
Acked-by: Alex Williamson <address@hidden>
[dwg: clarification to commit message]
Signed-off-by: David Gibson <address@hidden>

(cherry picked from commit d917e88d85a147a99f38a62a4f95cac21e366d51)
Signed-off-by: Michael Roth <address@hidden>
---
 hw/vfio/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index f27db36..e1927a5 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1147,7 +1147,7 @@ static int vfio_eeh_container_op(VFIOContainer 
*container, uint32_t op)
         return -errno;
     }
 
-    return 0;
+    return ret;
 }
 
 static VFIOContainer *vfio_eeh_as_container(AddressSpace *as)
-- 
1.9.1




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