linux-kernel - [PATCH 1/6] GPU-DRM-GMA500: Use kmalloc_array() in mid_get_vbt_data

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Date:   Tue, 20 Sep 2016 10:55:53 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     dri-devel@...ts.freedesktop.org, Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/6] GPU-DRM-GMA500: Use kmalloc_array() in
 mid_get_vbt_data_r10()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 20 Sep 2016 08:54:07 +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/gpu/drm/gma500/mid_bios.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/mid_bios.c b/drivers/gpu/drm/gma500/mid_bios.c
index d75ecb3..a833568 100644
--- a/drivers/gpu/drm/gma500/mid_bios.c
+++ b/drivers/gpu/drm/gma500/mid_bios.c
@@ -235,7 +235,7 @@ static int mid_get_vbt_data_r10(struct drm_psb_private *dev_priv, u32 addr)
 	if (read_vbt_r10(addr, &vbt))
 		return -1;
 
-	gct = kmalloc(sizeof(*gct) * vbt.panel_count, GFP_KERNEL);
+	gct = kmalloc_array(vbt.panel_count, sizeof(*gct), GFP_KERNEL);
 	if (!gct)
 		return -1;
 
-- 
2.10.0