linux-kernel - Re: [PATCH 1/2] coresight: funnel: Fix missing spin_lock

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Message-ID: <20191119043044.GB1446085@kroah.com>
Date:   Tue, 19 Nov 2019 05:30:44 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] coresight: funnel: Fix missing spin_lock_init()

On Mon, Nov 18, 2019 at 11:52:06AM -0700, Mathieu Poirier wrote:
> From: Wei Yongjun <weiyongjun1@...wei.com>
> 
> The driver allocates the spinlock but not initialize it.
> Use spin_lock_init() on it to initialize it correctly.
> 
> This is detected by Coccinelle semantic patch.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> Tested-by: Yabin Cui <yabinc@...gle.com>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> ---
>  drivers/hwtracing/coresight/coresight-funnel.c | 1 +
>  1 file changed, 1 insertion(+)

Is this, and the 2/2 patch here, needed for stable releases?

thanks,

greg k-h