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authorJens Freimann <jfreimann@redhat.com>2019-11-18 10:41:48 -0700
committerAlex Williamson <alex.williamson@redhat.com>2019-11-18 10:41:48 -0700
commited92369a5725ae42c28128778f154798f1464c26 (patch)
tree778e9042c97fad225905473cc23ac29f072f51fa /hw/vfio/pci.c
parent1335d64323be87ee14c766c59fabfb7e9acd7af7 (diff)
downloadfocaccia-qemu-ed92369a5725ae42c28128778f154798f1464c26.tar.gz
focaccia-qemu-ed92369a5725ae42c28128778f154798f1464c26.zip
vfio: don't ignore return value of migrate_add_blocker
When an error occurs in migrate_add_blocker() it sets a
negative return value and uses error pointer we pass in.
Instead of just looking at the error pointer check for a negative return
value and avoid a coverity error because the return value is
set but never used. This fixes CID 1407219.

Reported-by: Coverity (CID 1407219)
Fixes: f045a0104c8c ("vfio: unplug failover primary device before migration")
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/vfio/pci.c')
-rw-r--r--hw/vfio/pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 9c165995df..0c55883bba 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2737,7 +2737,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
         error_setg(&vdev->migration_blocker,
                 "VFIO device doesn't support migration");
         ret = migrate_add_blocker(vdev->migration_blocker, &err);
-        if (err) {
+        if (ret) {
             error_propagate(errp, err);
             error_free(vdev->migration_blocker);
             vdev->migration_blocker = NULL;