Message-id: <55B5E814.2020507@samsung.com>
Date: Mon, 27 Jul 2015 11:13:08 +0300
From: Andrey Ryabinin <a.ryabinin@samsung.com>
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To: Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        linux-arm-kernel@lists.infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>, Linus Walleij <linus.walleij@linaro.org>,
        David Keitel <dkeitel@codeaurora.org>,
        Alexander Potapenko <glider@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Dmitry Vyukov <dvyukov@google.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Alexey Klimov <klimov.linux@gmail.com>
Subject: Re: [PATCH v4 0/7] KASAN for arm64
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On 07/24/2015 07:41 PM, Andrey Ryabinin wrote:
>  - fix memleak in kasan_populate_zero_shadow:
>        Following code could leak memory when pgd_populate() is nop:
> 		void *p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
> 		pgd_populate(&init_mm, pgd, p);

It's not a leak actually, because this code is under if (pgd_none(*pgd)).
But gcc complains warns about unused variable p, so this has to be changed anyways.

> 	This was replaced by:
> 	     	 pgd_populate(&init_mm, pgd, early_alloc(PAGE_SIZE, NUMA_NO_NODE));


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