From: Borislav Petkov <bp@xxxxxxx>
Avoid homegrown notifier registration checks.
No functional changes.
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: linux-hyperv@xxxxxxxxxxxxxxx
---
drivers/hv/vmbus_drv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 392c1ac4f819..370afd108d2d 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1574,8 +1574,8 @@ static int vmbus_bus_init(void)
* the VMbus channel connection to prevent any VMbus
* activity after the VM panics.
*/
- atomic_notifier_chain_register(&panic_notifier_list,
- &hyperv_panic_block);
+ if (atomic_notifier_chain_register(&panic_notifier_list, &hyperv_panic_block))
+ pr_warn("VMBus panic notifier already registered\n");
vmbus_request_offers();
--
2.29.2
