From: Markus Elfring <[email protected]>
Date: Thu, 14 Dec 2017 16:24:51 +0100

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

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[email protected]>
---
 drivers/rapidio/rio.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index b9dc932ce19e..90534365e46c 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -110,9 +110,8 @@ EXPORT_SYMBOL(rio_query_mport);
  */
 struct rio_net *rio_alloc_net(struct rio_mport *mport)
 {
-       struct rio_net *net;
+       struct rio_net *net = kzalloc(sizeof(*net), GFP_KERNEL);
 
-       net = kzalloc(sizeof(struct rio_net), GFP_KERNEL);
        if (net) {
                INIT_LIST_HEAD(&net->node);
                INIT_LIST_HEAD(&net->devices);
@@ -246,8 +245,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
        if (!mport->ops->open_inb_mbox)
                goto out;
 
-       res = kzalloc(sizeof(struct resource), GFP_KERNEL);
-
+       res = kzalloc(sizeof(*res), GFP_KERNEL);
        if (res) {
                rio_init_mbox_res(res, mbox, mbox);
 
@@ -329,8 +327,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
        if (!mport->ops->open_outb_mbox)
                goto out;
 
-       res = kzalloc(sizeof(struct resource), GFP_KERNEL);
-
+       res = kzalloc(sizeof(*res), GFP_KERNEL);
        if (res) {
                rio_init_mbox_res(res, mbox, mbox);
 
@@ -445,8 +442,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
                                        u16 dst, u16 info))
 {
        int rc = 0;
-
-       struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+       struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
 
        if (res) {
                rio_init_dbell_res(res, start, end);
@@ -568,9 +564,8 @@ int rio_add_mport_pw_handler(struct rio_mport *mport, void 
*context,
                             void *context, union rio_pw_msg *msg, int step))
 {
        int rc = 0;
-       struct rio_pwrite *pwrite;
+       struct rio_pwrite *pwrite = kzalloc(sizeof(*pwrite), GFP_KERNEL);
 
-       pwrite = kzalloc(sizeof(struct rio_pwrite), GFP_KERNEL);
        if (!pwrite) {
                rc = -ENOMEM;
                goto out;
-- 
2.15.1

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