From d1509c097f685472fb8c6b510ae8c8678499e53d Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Tue, 6 Feb 2018 15:39:51 -0800 Subject: [PATCH] rapidio: improve a size determination in five functions 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. Link: http://lkml.kernel.org/r/495f571c-fb4d-b1d5-a6e5-494f2c537a8d@users.sourceforge.net Signed-off-by: Markus Elfring Acked-by: Alexandre Bounine Cc: Matt Porter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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;