linux-kernel - [PATCH] scsi: megaraid_mbox: return -ENOMEM on megaraid_init

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Message-Id: <1634640800-22502-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Tue, 19 Oct 2021 18:53:20 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     kashyap.desai@...adcom.com
Cc:     sumit.saxena@...adcom.com, shivasharan.srikanteshwara@...adcom.com,
        jejb@...ux.ibm.com, martin.petersen@...cle.com,
        megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        chongjiapeng <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] scsi: megaraid_mbox: return -ENOMEM on megaraid_init_mbox() allocation failure

From: chongjiapeng <jiapeng.chong@...ux.alibaba.com>

Fixes the following smatch warning:

drivers/scsi/megaraid/megaraid_mbox.c:715 megaraid_init_mbox() warn:
returning -1 instead of -ENOMEM is sloppy.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Fixes: dd00cc486ab1 ("some kmalloc/memset ->kzalloc (tree wide)")
Signed-off-by: chongjiapeng <jiapeng.chong@...ux.alibaba.com>
---
 drivers/scsi/megaraid/megaraid_mbox.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 14f930d27ca1..d98b223eab9a 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -712,7 +712,8 @@ megaraid_init_mbox(adapter_t *adapter)
 	 * controllers
 	 */
 	raid_dev = kzalloc(sizeof(mraid_device_t), GFP_KERNEL);
-	if (raid_dev == NULL) return -1;
+	if (raid_dev == NULL)
+		return -ENOMEM;
 
 
 	/*
-- 
2.19.1.6.gb485710b