From: Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: YueHaibing <yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: airlied-cv59FeDIM0c@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
robdclark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
jsanka-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH -next] drm/msm: dpu: Fix "WARNING: invalid free of devm_ allocated data"
Date: Fri, 16 Nov 2018 13:22:57 -0700 [thread overview]
Message-ID: <20181116202257.GC6285@jcrouse-lnx.qualcomm.com> (raw)
In-Reply-To: <20181116112526.10552-1-yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
On Fri, Nov 16, 2018 at 07:25:26PM +0800, YueHaibing wrote:
> 'dpu_enc' is a member of 'drm_enc'
> And 'drm_enc' got allocated with devm_kzalloc in dpu_encoder_init.
>
> This gives this error message:
> ./drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:459:1-6:
> WARNING: invalid free of devm_ allocated data
I had partial fix of this in my ill-fated patch from a few weeks ago but this
is better.
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 82c55ef..99526d9 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -455,8 +455,6 @@ static void dpu_encoder_destroy(struct drm_encoder *drm_enc)
>
> drm_encoder_cleanup(drm_enc);
> mutex_destroy(&dpu_enc->enc_lock);
> -
> - kfree(dpu_enc);
> }
>
> void dpu_encoder_helper_split_config(
> --
> 2.7.0
>
>
--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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next prev parent reply other threads:[~2018-11-16 20:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 11:25 [PATCH -next] drm/msm: dpu: Fix "WARNING: invalid free of devm_ allocated data" YueHaibing
[not found] ` <20181116112526.10552-1-yuehaibing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-11-16 20:22 ` Jordan Crouse [this message]
2018-11-16 21:38 ` Sean Paul
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