[PATCH] x86/hpet: Use kmalloc_array() in hpet_enable()

From	SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups	linux.kernel
Subject	[PATCH] x86/hpet: Use kmalloc_array() in hpet_enable()
Date	2016-09-04 21:50 +0200
Message-ID	<sdLAt-1Hb-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 4 Sep 2016 21:30:10 +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@users.sourceforge.net>
---
 arch/x86/kernel/hpet.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c6dfd80..3c2030d 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -876,8 +876,9 @@ int __init hpet_enable(void)
 #endif
 
 	cfg = hpet_readl(HPET_CFG);
-	hpet_boot_cfg = kmalloc((last + 2) * sizeof(*hpet_boot_cfg),
-				GFP_KERNEL);
+	hpet_boot_cfg = kmalloc_array(last + 2,
+				      sizeof(*hpet_boot_cfg),
+				      GFP_KERNEL);
 	if (hpet_boot_cfg)
 		*hpet_boot_cfg = cfg;
 	else
-- 
2.9.3

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH] x86/hpet: Use kmalloc_array() in hpet_enable() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-04 21:50 +0200

csiph-web