netdev - [PATCH 1/5] ISDN-CAPI: Use kmalloc_array() in capidrv

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Date:   Sun, 25 Sep 2016 13:11:13 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     netdev@...r.kernel.org, Karsten Keil <isdn@...ux-pingi.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/5] ISDN-CAPI: Use kmalloc_array() in capidrv_addcontr()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 25 Sep 2016 11:06:17 +0200

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

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/isdn/capi/capidrv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index 85cfa4f..cd8e1a6 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -2268,7 +2268,9 @@ static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
 	strcpy(card->name, id);
 	card->contrnr = contr;
 	card->nbchan = profp->nbchannel;
-	card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
+	card->bchans = kmalloc_array(card->nbchan,
+				     sizeof(capidrv_bchan),
+				     GFP_ATOMIC);
 	if (!card->bchans) {
 		printk(KERN_WARNING
 		       "capidrv: (%s) Could not allocate bchan-structs.\n", id);
-- 
2.10.0