orangefs: Use kcalloc() in orangefs_prepare_cdm_array()

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

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data structure 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: Mike Marshall <hubcap@omnibond.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 93fe8f8e60f1..5f59917fd631 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -571,9 +571,7 @@ static int orangefs_prepare_cdm_array(char *debug_array_string)
                 goto out;
         }
 
-        cdm_array =
-                kzalloc(cdm_element_count * sizeof(struct client_debug_mask),
-                        GFP_KERNEL);
+        cdm_array = kcalloc(cdm_element_count, sizeof(*cdm_array), GFP_KERNEL);
         if (!cdm_array) {
                 rc = -ENOMEM;
                 goto out;