linux-kernel - [PATCH] scsi: smartpqi: use kmalloc_array() for array space allocation

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Message-Id: <20250816150017.407518-1-rongqianfeng@vivo.com>
Date: Sat, 16 Aug 2025 23:00:16 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Don Brace <don.brace@...rochip.com>,
	"James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	storagedev@...rochip.com,
	linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH] scsi: smartpqi: use kmalloc_array() for array space allocation

Replace kmalloc(count * sizeof) with kmalloc_array() for safer memory
allocation and overflow prevention.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 125944941601..7ff39f1faf38 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -8937,7 +8937,7 @@ static int pqi_host_alloc_mem(struct pqi_ctrl_info *ctrl_info,
 	if (sg_count == 0 || sg_count > PQI_HOST_MAX_SG_DESCRIPTORS)
 		goto out;
 
-	host_memory_descriptor->host_chunk_virt_address = kmalloc(sg_count * sizeof(void *), GFP_KERNEL);
+	host_memory_descriptor->host_chunk_virt_address = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
 	if (!host_memory_descriptor->host_chunk_virt_address)
 		goto out;
 
-- 
2.34.1