[PATCH 5/5] IB/hfi1: Improve another size determination in hfi1_user_sdma_process_request()

[SF Markus Elfring]

From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 10 Feb 2017 21:45:38 +0100

Replace the specification of a data structure by a reference to
the desired member as the parameter for the operator "sizeof" to make
the corresponding size determination a bit safer according to
the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/infiniband/hw/hfi1/user_sdma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index 5a73d738f2ba..da131a530b88 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -704,7 +704,9 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 	/* Save all the IO vector structures */
 	for (i = 0; i < req->data_iovs; i++) {
 		INIT_LIST_HEAD(&req->iovs[i].list);
-		memcpy(&req->iovs[i].iov, iovec + idx++, sizeof(struct iovec));
+		memcpy(&req->iovs[i].iov,
+		       iovec + idx++,
+		       sizeof(req->iovs[i].iov));
 		ret = pin_vector_pages(req, &req->iovs[i]);
 		if (ret) {
 			req->status = ret;
-- 
2.11.1