[PATCH 2/2][next] vfio/ccw: Use struct_size() helper

Gustavo A. R. Silva
2023-05-23T01:35:35Z

Prefer struct_size() over open-coded versions.

Link: https://github.com/KSPP/linux/issues/160
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/s390/cio/vfio_ccw_drv.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 57906a9c6324..43601816ea4e 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -171,8 +171,7 @@ static int vfio_ccw_sch_probe(struct subchannel *sch)
return -ENODEV;
}

- parent = kzalloc(sizeof(*parent) + sizeof(struct mdev_type *),
- GFP_KERNEL);
+ parent = kzalloc(struct_size(parent, mdev_types, 1), GFP_KERNEL);
if (!parent)
return -ENOMEM;

--
2.34.1