From: Nigel Cunningham <nigel@tuxonice.net>
To: Steven Liu <lingjiujianke@gmail.com>
Cc: Linus WALLEIJ <linus.walleij@stericsson.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Check kmalloc return value before use the buffer
Date: Fri, 07 May 2010 19:51:39 +1000 [thread overview]
Message-ID: <4BE3E2AB.9030107@tuxonice.net> (raw)
In-Reply-To: <v2gbd0d95d71005070247j1f615a65mcbd52b5b6474206e@mail.gmail.com>
Hi.
On 07/05/10 19:47, Steven Liu wrote:
> Hi, guy,
>
> the code in arch/arm/mach-u300/dummyspichip.c is
>
> bigtxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
> if (bigtxbuf_virtual == NULL) {
> status = -ENOMEM;
> goto out;
> }
> bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
>
>
> if kmalloc memory space for bigrxbuf_virtual is NULL, when it have
> kmalloc DMA_TEST_SIZE memory space for bigtxbuf_virtual,so ,if kmalloc
> memory for bigtxbuf_virtual success and kmalloc memory for
> bigrxbuf_virtual faild,i think we must kfree bigtxbuf_virtual memory
Ah, I see. I misread. Humble apologies :)
The other point still applies: You need to add a commit comment - even a
simple one.
Regards,
Nigel
next prev parent reply other threads:[~2010-05-07 9:51 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-07 2:41 [PATCH] Check kmalloc return value before use the buffer Steven Liu
2010-05-07 6:52 ` Linus WALLEIJ
2010-05-07 7:16 ` Steven Liu
2010-05-07 7:17 ` Steven Liu
2010-05-07 9:37 ` Nigel Cunningham
2010-05-07 9:37 ` Nigel Cunningham
2010-05-07 9:47 ` Steven Liu
2010-05-07 9:51 ` Nigel Cunningham [this message]
2010-05-07 18:57 ` Linus WALLEIJ
2010-05-08 1:27 ` Nigel Cunningham
2010-05-08 8:56 ` Steven Liu
2010-05-07 9:50 ` Steven Liu
2010-05-07 9:52 ` Nigel Cunningham
2010-05-07 9:55 ` Steven Liu
2010-05-10 21:49 ` Andy Isaacson
2010-05-10 22:08 ` Nigel Cunningham
-- strict thread matches above, loose matches on Subject: below --
2010-05-07 9:05 Steven Liu
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