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

From: SF Markus Elfring
Date: Sun Sep 04 2016 - 15:47:55 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxxx>
---
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