[PATCH 1/5] IB/hfi1: Use kcalloc() in hfi1_user_exp_rcv_init()

[SF Markus Elfring]

From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 9 Feb 2017 15:30:53 +0100

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus reuse the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  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_exp_rcv.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.c b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
index 64d26525435a..8ae0d26a34c6 100644
--- a/drivers/infiniband/hw/hfi1/user_exp_rcv.c
+++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
@@ -199,8 +199,9 @@ int hfi1_user_exp_rcv_init(struct file *fp)
 
 	if (!HFI1_CAP_UGET_MASK(uctxt->flags, TID_UNMAP)) {
 		fd->invalid_tid_idx = 0;
-		fd->invalid_tids = kzalloc(uctxt->expected_count *
-					   sizeof(u32), GFP_KERNEL);
+		fd->invalid_tids = kcalloc(uctxt->expected_count,
+					   sizeof(*fd->invalid_tids),
+					   GFP_KERNEL);
 		if (!fd->invalid_tids) {
 			ret = -ENOMEM;
 			goto done;
-- 
2.11.1