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NTB: Use struct_size() helper in devm_kzalloc()

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Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
variable _struct_size_.

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Gustavo A. R. Silva 2020-06-19 12:25:14 -05:00 committed by Jon Mason
parent dbb8df5c2d
commit b8e2c8bbdf
1 changed files with 1 additions and 4 deletions
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5
drivers/ntb/test/ntb_msi_test.c
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@ -319,7 +319,6 @@ static void ntb_msit_remove_dbgfs(struct ntb_msit_ctx *nm)
static int ntb_msit_probe(struct ntb_client *client, struct ntb_dev *ntb)
{
struct ntb_msit_ctx *nm;
size_t struct_size;
int peers;
int ret;
@ -352,9 +351,7 @@ static int ntb_msit_probe(struct ntb_client *client, struct ntb_dev *ntb)
return ret;
}
struct_size = sizeof(*nm) + sizeof(*nm->peers) * peers;
nm = devm_kzalloc(&ntb->dev, struct_size, GFP_KERNEL);
nm = devm_kzalloc(&ntb->dev, struct_size(nm, peers, peers), GFP_KERNEL);
if (!nm)
return -ENOMEM;