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Mon, 21 Feb 2022 00:04:06 +0000 Message-ID: <14d6e454-49c3-0a85-68f1-3f003ad032e6@ugent.be> Date: Mon, 21 Feb 2022 01:03:52 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.1 Content-Language: en-US To: Adaptec OEM Raid Solutions Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org From: Niels Dossche Subject: [PATCH] scsi: aacraid: add missing manage_lock on management_fib_count X-ClientProxiedBy: PR3P189CA0038.EURP189.PROD.OUTLOOK.COM (2603:10a6:102:53::13) To AM6PR09MB2326.eurprd09.prod.outlook.com (2603:10a6:20b:46::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6c2e2d67-ce6c-4e53-f325-08d9f4cda5d7 X-MS-TrafficTypeDiagnostic: PR3PR09MB4395:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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Avoid a possible race condition by also applying that lock in aac_src_intr_message. Signed-off-by: Niels Dossche --- drivers/scsi/aacraid/src.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index 11ef58204e96..ca73439587ed 100644 --- a/drivers/scsi/aacraid/src.c +++ b/drivers/scsi/aacraid/src.c @@ -91,7 +91,9 @@ static irqreturn_t aac_src_intr_message(int irq, void *dev_id) dev->sync_fib); spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { + spin_lock(&dev->manage_lock); dev->management_fib_count--; + spin_unlock(&dev->manage_lock); complete(&dev->sync_fib->event_wait); } spin_unlock_irqrestore(&dev->sync_fib->event_lock,