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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
parent1335d64323be87ee14c766c59fabfb7e9acd7af7 (diff)
downloadqemu-ed92369a5725ae42c28128778f154798f1464c26.tar.gz
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>
-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 9c165995df3..0c55883bba7 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;