linux-kernel - Re: [PATCH] cpufreq: powernv: fix missing check of return value in init_powernv

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Date:   Mon, 18 Feb 2019 00:41:49 +0530
From:   Akshay Adiga <akshay.adiga@...ux.vnet.ibm.com>
To:     Yangtao Li <tiny.windzz@...il.com>
Cc:     rjw@...ysocki.net, viresh.kumar@...aro.org,
        benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH] cpufreq: powernv: fix missing check of return value in
 init_powernv_pstates()

On Sat, Feb 16, 2019 at 12:06:23PM -0500, Yangtao Li wrote:
> kmalloc() could fail, so insert a check of its return value. And
> if it fails, returns -ENOMEM.
> 
> And remove (struct pstate_idx_revmap_data *) to fix coccinelle WARNING
> by the way.
> 
> WARNING: casting value returned by memory allocation function to (struct
> pstate_idx_revmap_data *) is useless.
> 
> Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
> ---
>  drivers/cpufreq/powernv-cpufreq.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
Looks good to me. Thanks for fixing this.