[PATCH 3/3] iscsi-target: Improve size determinations in four functions

SF Markus Elfring
2017-04-09T14:29:35Z

Date: Sun, 9 Apr 2017 16:00:39 +0200

Replace the specification of four data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determinations a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/target/iscsi/iscsi_target.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 196e9dd138ca..5ef6eb238174 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -128,7 +128,7 @@ struct iscsi_tiqn *iscsit_add_tiqn(unsigned char *buf)
return ERR_PTR(-EINVAL);
}

- tiqn = kzalloc(sizeof(struct iscsi_tiqn), GFP_KERNEL);
+ tiqn = kzalloc(sizeof(*tiqn), GFP_KERNEL);
if (!tiqn)
return ERR_PTR(-ENOMEM);

@@ -360,7 +360,7 @@ struct iscsi_np *iscsit_add_np(
return np;
}

- np = kzalloc(sizeof(struct iscsi_np), GFP_KERNEL);
+ np = kzalloc(sizeof(*np), GFP_KERNEL);
if (!np) {
mutex_unlock(&np_lock);
return ERR_PTR(-ENOMEM);
@@ -694,8 +694,7 @@ static int __init iscsi_target_init_module(void)
int ret = 0, size;

pr_debug("iSCSI-Target "ISCSIT_VERSION"\n");
-
- iscsit_global = kzalloc(sizeof(struct iscsit_global), GFP_KERNEL);
+ iscsit_global = kzalloc(sizeof(*iscsit_global), GFP_KERNEL);
if (!iscsit_global)
return -1;

@@ -1987,8 +1986,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
hdr->refcmdsn = cpu_to_be32(ISCSI_RESERVED_TAG);

cmd->data_direction = DMA_NONE;
-
- cmd->tmr_req = kzalloc(sizeof(struct iscsi_tmr_req), GFP_KERNEL);
+ cmd->tmr_req = kzalloc(sizeof(*cmd->tmr_req), GFP_KERNEL);
if (!cmd->tmr_req)
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES,
--
2.12.2