[Qemu-devel] [PULL for-4.1 1/4] vfio-ccw: Test vfio_set_irq_signaling() return value

[Cornelia Huck <cohuck@redhat.com>]

From: Alex Williamson <alex.williamson@redhat.com>

Coverity doesn't like that most callers of vfio_set_irq_signaling() check
the return value and doesn't understand the equivalence of testing the
error pointer instead.  Test the return value consistently.

Reported-by: Coverity (CID 1402783)
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Message-Id: <156209642116.14915.9598593247782519613.stgit@gimli.home>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 hw/vfio/ccw.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 6d0296fe4d9c..16f200e6fe6a 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -327,9 +327,8 @@ static void vfio_ccw_unregister_io_notifier(VFIOCCWDevice *vcdev)
 {
     Error *err = NULL;
 
-    vfio_set_irq_signaling(&vcdev->vdev, VFIO_CCW_IO_IRQ_INDEX, 0,
-                           VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err);
-    if (err) {
+    if (vfio_set_irq_signaling(&vcdev->vdev, VFIO_CCW_IO_IRQ_INDEX, 0,
+                               VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err)) {
         error_reportf_err(err, VFIO_MSG_PREFIX, vcdev->vdev.name);
     }
 
-- 
2.20.1