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From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
To: Anton Vorontsov <anton@enomsg.org>,
	Colin Cross <ccross@android.com>,
	Kees Cook <keescook@chromium.org>,
	Tony Luck <tony.luck@intel.com>
Cc: linux-kernel@vger.kernel.org,
	cti.systems-productivity-manager.ts@hitachi.com,
	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>,
	Mark Salyzyn <salyzyn@android.com>,
	Seiji Aguchi <seiji.aguchi.tr@hitachi.com>,
	Shuah Khan <shuahkh@osg.samsung.com>
Subject: [PATCH v3 1/8] pstore: Replace four kzalloc() calls by kcalloc() in ramoops_init_przs()
Date: Tue, 18 Oct 2016 16:13:27 +0900	[thread overview]
Message-ID: <1476774814-6840-2-git-send-email-nobuhiro.iwamatsu.kw@hitachi.com> (raw)
In-Reply-To: <1476774814-6840-1-git-send-email-nobuhiro.iwamatsu.kw@hitachi.com>

The script "checkpatch.pl" can point information out like the following.

    WARNING: Prefer kcalloc over kzalloc with multiply

Thus fix the affected source code places.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Seiji Aguchi <seiji.aguchi.tr@hitachi.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Tony Luck <tony.luck@intel.com>

V3:
    New patch.
---
 fs/pstore/ram.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 6ad831b..0bef455 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -424,8 +424,8 @@ static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
 	if (!cxt->max_dump_cnt)
 		return -ENOMEM;
 
-	cxt->przs = kzalloc(sizeof(*cxt->przs) * cxt->max_dump_cnt,
-			     GFP_KERNEL);
+	cxt->przs = kcalloc(cxt->max_dump_cnt, sizeof(*cxt->przs),
+			    GFP_KERNEL);
 	if (!cxt->przs) {
 		dev_err(dev, "failed to initialize a prz array for dumps\n");
 		goto fail_mem;
-- 
2.9.3

  reply	other threads:[~2016-10-18  7:14 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-18  7:13 [PATCH v3 0/8] pstore: ramoops: support multiple pmsg instances Nobuhiro Iwamatsu
2016-10-18  7:13 ` Nobuhiro Iwamatsu [this message]
2016-10-18  7:13 ` [PATCH v3 2/8] pstore: Change parameter of ramoops_free_przs() Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 3/8] ramoops: Add __ramoops_init_prz() as generic function Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 4/8] pstore: Rename 'przs' to 'dprzs' in struct ramoops_context Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 5/8] ramoops: Rename ramoops_init_prz() to ramoops_init_dprzs() Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 6/8] pstore: support multiple pmsg instances Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 7/8] ramoops: " Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 8/8] selftests/pstore: add testcases for " Nobuhiro Iwamatsu
2016-11-11 22:24 ` [PATCH v3 0/8] pstore: ramoops: support " Kees Cook
2016-12-05  1:47   ` 岩松信洋 / IWAMATSU,NOBUHIRO
2016-12-27  0:48     ` 岩松信洋 / IWAMATSU,NOBUHIRO
2017-01-04  6:20       ` Kees Cook

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