linux-kernel - Re: [PATCH] ARM: mvebu: check the validation of memory allocation

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Message-ID: <YmwB83u68uPKuU0a@shell.armlinux.org.uk>
Date:   Fri, 29 Apr 2022 16:19:15 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     xkernel.wang@...mail.com
Cc:     andrew@...n.ch, gregory.clement@...tlin.com,
        sebastian.hesselbarth@...il.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: mvebu: check the validation of memory allocation

On Fri, Mar 25, 2022 at 04:55:18PM +0800, xkernel.wang@...mail.com wrote:
> From: Xiaoke Wang <xkernel.wang@...mail.com>
> 
> kzalloc() and kstrdup() are memory allocation functions which can return
> NULL when some internal memory errors happen. So it is better to check
> the return value of them to prevent potential wrong memory access or
> memory leak.

Are these failures silent, or will they be reported in the kernel log to
make their failure obvious to those who debug the kernel?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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