From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753051Ab0EGClQ (ORCPT ); Thu, 6 May 2010 22:41:16 -0400 Received: from mail-px0-f174.google.com ([209.85.212.174]:44237 "EHLO mail-px0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752350Ab0EGClO (ORCPT ); Thu, 6 May 2010 22:41:14 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:cc:content-type; b=GB6lRZnqJN+w8rm32vKRbfG7pVJt11bdHjg5myzlYy/W105Dp8ugiC1QiCiPWCB9Ey feI0SxiQ0SF5wRY8PeCfdS/fWUMKjRm6k2hHVgreanDwBuH5BwH/CvQDE7K7tiqssyw5 dJ+V+p9o/Qtk9iMP8NT6iVFis89+OmGz66Kz4= MIME-Version: 1.0 Date: Fri, 7 May 2010 10:41:14 +0800 Message-ID: Subject: [PATCH] Check kmalloc return value before use the buffer From: Steven Liu To: linus.walleij@stericsson.com Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi,linus.walleij Check kmalloc return value before use the buffer Signed-off-by: LiuQi --- arch/arm/mach-u300/dummyspichip.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-u300/dummyspichip.c b/arch/arm/mach-u300/dummyspichip.c index 962f9de..4f2af7c 100644 --- a/arch/arm/mach-u300/dummyspichip.c +++ b/arch/arm/mach-u300/dummyspichip.c @@ -63,6 +63,11 @@ static ssize_t dummy_looptest(struct device *dev, goto out; } bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL); + if (bigtxbuf_virtual == NULL) { + status = -ENOMEM; + kfree(bigtxbuf_virtual); + goto out; + } /* Fill TXBUF with some happy pattern */ memset(bigtxbuf_virtual, 0xAA, DMA_TEST_SIZE); -- 1.6.0.3