From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Sun, 09 Apr 2017 14:23:41 +0000 Subject: [PATCH 1/3] iscsi-target: Use kcalloc() in iscsit_allocate_iovecs() Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, Bart Van Assche , Hannes Reinecke , "Nicholas A. Bellinger" , Varun Prakash Cc: LKML , kernel-janitors@vger.kernel.org From: Markus Elfring Date: Sun, 9 Apr 2017 15:06:00 +0200 * A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "kcalloc". This issue was detected by using the Coccinelle software. * Replace the specification of a data structure by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring --- drivers/target/iscsi/iscsi_target.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index a91802432f2f..536b939afe9d 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -985,8 +985,7 @@ static int iscsit_allocate_iovecs(struct iscsi_cmd *cmd) u32 iov_count = max(1UL, DIV_ROUND_UP(cmd->se_cmd.data_length, PAGE_SIZE)); iov_count += ISCSI_IOV_DATA_BUFFER; - - cmd->iov_data = kzalloc(iov_count * sizeof(struct kvec), GFP_KERNEL); + cmd->iov_data = kcalloc(iov_count, sizeof(*cmd->iov_data), GFP_KERNEL); if (!cmd->iov_data) { pr_err("Unable to allocate cmd->iov_data\n"); return -ENOMEM; -- 2.12.2