Use struct_size() instead of hand-writing it, when allocating a structure with a flex array. This is less verbose, more robust and more informative. Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- It will also be helpful if the __counted_by() annotation is added with a Coccinelle script such as: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=devel/counted_by&id=adc5b3cb48a049563dc673f348eab7b6beba8a9b --- drivers/hwtracing/stm/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index 534fbefc7f6a..2195310ab81c 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -863,7 +863,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data, return -EINVAL; nmasters = stm_data->sw_end - stm_data->sw_start + 1; - stm = vzalloc(sizeof(*stm) + nmasters * sizeof(void *)); + stm = vzalloc(struct_size(stm, masters, nmasters)); if (!stm) return -ENOMEM; -- 2.34.1