clk: hisilicon: Use devm_kmalloc_array() in hisi_clk_alloc()

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

  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@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index 9268e80b7566..7e1e22eb5689 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -54,8 +54,9 @@ struct hisi_clock_data *hisi_clk_alloc(struct platform_device *pdev,
         if (!clk_data->base)
                 return NULL;
 
-        clk_table = devm_kmalloc(&pdev->dev, sizeof(struct clk *) * nr_clks,
-                                GFP_KERNEL);
+        clk_table = devm_kmalloc_array(&pdev->dev, nr_clks,
+                                       sizeof(*clk_table),
+                                       GFP_KERNEL);
         if (!clk_table)
                 return NULL;