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IB/hns: Use kcalloc() in hns_roce_buddy_init()

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* Multiplications for the size determination of memory allocations
  indicated that array data structures should be processed.
  Thus use the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of data types by pointer dereferences
  to make the corresponding size determinations a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Markus Elfring 2017-02-16 09:30:55 +01:00 committed by Doug Ledford
parent e1d717de5d
commit 4418b27b52
1 changed files with 6 additions and 5 deletions
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11
drivers/infiniband/hw/hns/hns_roce_mr.c
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@ -127,11 +127,12 @@ static int hns_roce_buddy_init(struct hns_roce_buddy *buddy, int max_order)
buddy->max_order = max_order;
spin_lock_init(&buddy->lock);
buddy->bits = kzalloc((buddy->max_order + 1) * sizeof(long *),
GFP_KERNEL);
buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof(int *),
GFP_KERNEL);
buddy->bits = kcalloc(buddy->max_order + 1,
sizeof(*buddy->bits),
GFP_KERNEL);
buddy->num_free = kcalloc(buddy->max_order + 1,
sizeof(*buddy->num_free),
GFP_KERNEL);
if (!buddy->bits || !buddy->num_free)
goto err_out;