[PULL 08/11] vfio/ccw: Return false when IRQ notifier setup fails

["Cédric Le Goater" <clg@redhat.com>]

From: GuoHan Zhao <zhaoguohan@kylinos.cn>

vfio_ccw_register_irq_notifier() cleans up the fd handler and EventNotifier
when vfio_device_irq_set_signaling() fails, but still returns true to its
caller.

Return false after cleanup so the caller can handle the failed
registration path instead of treating it as a successful notifier setup.

Fixes: 8aaeff97acee ("vfio/ccw: Make vfio_ccw_register_irq_notifier() return a bool")
Signed-off-by: GuoHan Zhao <zhaoguohan@kylinos.cn>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260510084353.58263-3-zhaoguohan@kylinos.cn
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/ccw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index ff6ab9a7408f01b9e64ba06f2c8da4a69fa1f9ff..c3dc7c19623556ea452344b8e4b76fb9a56206c7 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -431,6 +431,7 @@ static bool vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev,
                                        VFIO_IRQ_SET_ACTION_TRIGGER, fd, errp)) {
         qemu_set_fd_handler(fd, NULL, NULL, vcdev);
         event_notifier_cleanup(notifier);
+        return false;
     }
 
     return true;
-- 
2.54.0