From: Borislav Petkov <bp@alien8.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-hyperv@vger.kernel.org
Subject: [PATCH v0 08/42] Drivers: hv: vmbus: Check notifier registration return value
Date: Mon, 8 Nov 2021 11:11:23 +0100 [thread overview]
Message-ID: <20211108101157.15189-9-bp@alien8.de> (raw)
In-Reply-To: <20211108101157.15189-1-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
Avoid homegrown notifier registration checks.
No functional changes.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: linux-hyperv@vger.kernel.org
---
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
next parent reply other threads:[~2021-11-08 10:12 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211108101157.15189-1-bp@alien8.de>
2021-11-08 10:11 ` Borislav Petkov [this message]
2021-11-08 11:16 ` [PATCH v0 08/42] Drivers: hv: vmbus: Check notifier registration return value Wei Liu
2021-11-08 11:39 ` Borislav Petkov
2021-11-08 11:45 ` Wei Liu
2021-11-08 12:08 ` Borislav Petkov
2021-11-08 10:11 ` [PATCH v0 17/42] drivers: video: " Borislav Petkov
2021-11-08 11:16 ` Wei Liu
2021-11-08 10:11 ` [PATCH v0 42/42] notifier: Return an error when callback is already registered Borislav Petkov
2021-11-08 14:07 ` Geert Uytterhoeven
2021-11-08 14:21 ` Borislav Petkov
2021-11-08 15:25 ` Geert Uytterhoeven
2021-11-08 15:58 ` Borislav Petkov
2021-11-08 16:12 ` Geert Uytterhoeven
2021-11-08 16:21 ` Borislav Petkov
2021-11-08 20:59 ` Alan Stern
2021-11-08 21:18 ` Borislav Petkov
2021-11-08 10:19 ` [PATCH v0 00/42] notifiers: " Borislav Petkov
2021-11-08 14:17 ` Alan Stern
2021-11-08 14:24 ` Borislav Petkov
2021-11-08 14:35 ` Borislav Petkov
2021-11-08 16:23 ` Steven Rostedt
2021-11-08 16:29 ` Borislav Petkov
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