linux-kernel - [PATCH v2] Staging: ccree: Use kcalloc instead of kzalloc

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Date:   Thu, 14 Sep 2017 18:18:13 +0530
From:   Srishti Sharma <srishtishar@...il.com>
To:     gilad@...yossef.com
Cc:     gregkh@...uxfoundation.org, linux-crypto@...r.kernel.org,
        driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com,
        Srishti Sharma <srishtishar@...il.com>
Subject: [PATCH v2] Staging: ccree: Use kcalloc instead of kzalloc

Use kcalloc instead of kzalloc to check for overflow before
multiplication. Done using the following semantic patch by
coccinelle.

http://coccinelle.lip6.fr/rules/kzalloc.cocci

Signed-off-by: Srishti Sharma <srishtishar@...il.com>
---
Changes in v2:
 - eliminate parentheses around the first argument

 drivers/staging/ccree/ssi_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ccree/ssi_sysfs.c b/drivers/staging/ccree/ssi_sysfs.c
index 0655658..f7e0c502 100644
--- a/drivers/staging/ccree/ssi_sysfs.c
+++ b/drivers/staging/ccree/ssi_sysfs.c
@@ -376,7 +376,7 @@ static int sys_init_dir(struct sys_dir *sys_dir, struct ssi_drvdata *drvdata,
 		return -ENOMEM;
 	/* allocate memory for directory's attributes list */
 	sys_dir->sys_dir_attr_list =
-		kzalloc(sizeof(struct attribute *) * (num_of_attrs + 1),
+		kcalloc(num_of_attrs + 1, sizeof(struct attribute *),
 			GFP_KERNEL);
 
 	if (!(sys_dir->sys_dir_attr_list)) {
-- 
2.7.4