linux-kernel - [PATCH] cris:Check kmalloc return value before use data

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Message-ID: <AANLkTiknP0na-SILHs9Zg3HzgC7XuDx4x0J8fK6RoDE4@mail.gmail.com>
Date:	Tue, 18 May 2010 14:25:44 +0800
From:	Steven Liu <lingjiujianke@...il.com>
To:	starvik@...s.com, jesper.nilsson@...s.com,
	linux-kernel@...r.kernel.org, linux-cris-kernel@...s.com,
	liuqi@...nderst.com
Subject: [PATCH] cris:Check kmalloc return value before use data

Check kmalloc return value before use data

Signed-off-by: Liu Qi <lingjiujianke@...il.com>
---
 arch/cris/arch-v32/kernel/signal.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/cris/arch-v32/kernel/signal.c
b/arch/cris/arch-v32/kernel/signal.c
index 0b7e3f1..dd69fb4 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -656,6 +656,9 @@ int __init
 cris_init_signal(void)
 {
    u16* data = kmalloc(PAGE_SIZE, GFP_KERNEL);
+   if(!data){
+       printk(KERN_ERR "kmalloc memory failed in %s \n", __func__);
+       return -ENOMEM;
+   }

    /* This is movu.w __NR_sigreturn, r9; break 13; */
    data[0] = 0x9c5f;
--
1.7.1
--
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