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

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Date:	Tue, 18 May 2010 15:11:04 +0800
From:	Steven Liu <lingjiujianke@...il.com>
To:	starvik@...s.com, "Gerald (Jerry) Carter" <jerry@...ba.org>,
	linux-kernel@...r.kernel.org, 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 |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/cris/arch-v32/kernel/signal.c
b/arch/cris/arch-v32/kernel/signal.c
index 0b7e3f1..534eea3 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -656,6 +656,10 @@ int __init
 cris_init_signal(void)
 {
        u16* data = kmalloc(PAGE_SIZE, GFP_KERNEL);
+       if(!data){
+               printk(KERN_ERR "kmalloc 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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