From 18fc82d6e899be54fcf43b28e588e28f09c8810f Mon Sep 17 00:00:00 2001 From: "Minghao Chi (CGEL ZTE)" Date: Wed, 16 Feb 2022 03:07:20 +0000 Subject: rpmsg: use struct_size over open coded arithmetic Replace zero-length array with flexible-array member and make use of the struct_size() helper in kzalloc(). For example: struct glink_defer_cmd { struct list_head node; struct glink_msg msg; u8 data[]; }; Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. Reported-by: Zeal Robot Signed-off-by: Minghao Chi (CGEL ZTE) Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220216030720.1839503-1-chi.minghao@zte.com.cn --- drivers/rpmsg/qcom_glink_native.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/rpmsg') diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 1030cfa80e04..f4f4e392d0d1 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -792,7 +792,7 @@ static int qcom_glink_rx_defer(struct qcom_glink *glink, size_t extra) return -ENXIO; } - dcmd = kzalloc(sizeof(*dcmd) + extra, GFP_ATOMIC); + dcmd = kzalloc(struct_size(dcmd, data, extra), GFP_ATOMIC); if (!dcmd) return -ENOMEM; -- cgit v1.2.3-58-ga151