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[PATCH 15/18] mtd-cfi_cmdset_0002: Use kcalloc() in cfi_ppb_unlock()

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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 11 Jan 2017 19:15:52 +0100

* 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>
---
 drivers/mtd/chips/cfi_cmdset_0002.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 0c4751eb6efe..81b6fd35be91 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -2649,7 +2649,7 @@ static int __maybe_unused cfi_ppb_unlock(struct mtd_info *mtd, loff_t ofs,
 	 * first check the locking status of all sectors and save
 	 * it for future use.
 	 */
-	sect = kzalloc(MAX_SECTORS * sizeof(struct ppb_lock), GFP_KERNEL);
+	sect = kcalloc(MAX_SECTORS, sizeof(*sect), GFP_KERNEL);
 	if (!sect)
 		return -ENOMEM;
 
-- 
2.11.0

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[PATCH 00/18] MTD-CFI: Fine-tuning for several function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:40 +0100
  [PATCH 03/18] mtd-cfi_cmdset_0001: Add some spaces for better code  readability SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
    Re: [PATCH 03/18] mtd-cfi_cmdset_0001: Add some spaces for better  code readability Dan Carpenter <dan.carpenter@oracle.com> - 2017-01-12 10:30 +0100
  [PATCH 04/18] mtd-cfi_cmdset_0001: Delete an unnecessary variable  initialisation in do_write_oneword() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 07/18] mtd-cfi_cmdset_0001: One function call and an  unnecessary check less in cfi_intelext_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 05/18] mtd-cfi_cmdset_0001: Use common error handling code in  do_write_oneword() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 09/18] mtd-cfi_cmdset_0002: Use kmalloc_array() in  cfi_amdstd_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 11/18] mtd-cfi_cmdset_0002: Rename a jump label in  cfi_amdstd_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 08/18] mtd-cfi_cmdset_0001: Rename a jump label in  cfi_intelext_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 10/18] mtd-cfi_cmdset_0002: One function call less in  cfi_amdstd_setup() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 06/18] mtd-cfi_cmdset_0001: Use kcalloc() in  cfi_intelext_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 21:50 +0100
  [PATCH 14/18] mtd-cfi_cmdset_0002: Use common error handling code in  do_write_oneword() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  [PATCH 16/18] mtd-cfi_cmdset_0020: Use kmalloc_array() in  cfi_staa_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  [PATCH 17/18] mtd-cfi_cmdset_0020: Use common error handling code in  cfi_staa_setup() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  [PATCH 18/18] mtd-cfi_cmdset_0020: Add some spaces for better code  readability SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
    Re: [PATCH 18/18] mtd-cfi_cmdset_0020: Add some spaces for better  code readability Dan Carpenter <dan.carpenter@oracle.com> - 2017-01-12 10:40 +0100
  [PATCH 13/18] mtd-cfi_cmdset_0002: Delete an unnecessary variable  initialisation in do_write_oneword() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  [PATCH 15/18] mtd-cfi_cmdset_0002: Use kcalloc() in cfi_ppb_unlock() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  [PATCH 12/18] mtd-cfi_cmdset_0002: Add some spaces for better code  readability SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-11 22:00 +0100
  Re: [PATCH 00/18] MTD-CFI: Fine-tuning for several function  implementations Boris Brezillon <boris.brezillon@free-electrons.com> - 2017-01-11 23:00 +0100
  Re: [PATCH 00/18] MTD-CFI: Fine-tuning for several function  implementations Marek Vasut <marek.vasut@gmail.com> - 2017-01-11 23:10 +0100

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