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From: Brajesh Gupta <Brajesh.Gupta@imgtec.com>
To: Luigi Santivetti <Luigi.Santivetti@imgtec.com>,
	"tzimmermann@suse.de" <tzimmermann@suse.de>,
	"simona@ffwll.ch" <simona@ffwll.ch>,
	"airlied@gmail.com" <airlied@gmail.com>,
	Alessio Belle <Alessio.Belle@imgtec.com>,
	"maarten.lankhorst@linux.intel.com"
	<maarten.lankhorst@linux.intel.com>,
	"mripard@kernel.org" <mripard@kernel.org>,
	"gye976@gmail.com" <gye976@gmail.com>
Cc: "dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"imagination@lists.freedesktop.org"
	<imagination@lists.freedesktop.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/3] drm/imagination: Fix pvr_mmu_map_sgl() overwriting its own error
Date: Mon, 28 Sep 2026 09:01:58 +0000	[thread overview]
Message-ID: <661f8ddfda9f5cb3f0c23d4594fa912b9ef2e2ff.camel@imgtec.com> (raw)
In-Reply-To: <20260927-pvr-fixes-a-v1-2-7f5b18ab989a@gmail.com>

On Sun, 2026-09-27 at 17:25 +0900, Gyeyoung Baek wrote:
Hi Gyeyoung,
> pvr_mmu_op_context_unmap_curr_page() is called here to clean up after an
> error. Its own success overwrites that error, so success is returned.
> 
This issue is recently fixed under
https://patchwork.freedesktop.org/patch/755273/. Please have a look.

Thanks,
Brajesh

> Fixes: ff5f643de0bf ("drm/imagination: Add GEM and VM related code")
> Signed-off-by: Gyeyoung Baek <gye976@gmail.com>
> ---
>  drivers/gpu/drm/imagination/pvr_mmu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/imagination/pvr_mmu.c b/drivers/gpu/drm/imagination/pvr_mmu.c
> index 3cac482e103..3e494bfa936 100644
> --- a/drivers/gpu/drm/imagination/pvr_mmu.c
> +++ b/drivers/gpu/drm/imagination/pvr_mmu.c
> @@ -2553,7 +2553,7 @@ pvr_mmu_map_sgl(struct pvr_mmu_op_context *op_ctx, struct scatterlist *sgl,
>  
>  err_destroy_pages:
>  	memcpy(&op_ctx->curr_page, &ptr_copy, sizeof(op_ctx->curr_page));
> -	err = pvr_mmu_op_context_unmap_curr_page(op_ctx, page);
> +	pvr_mmu_op_context_unmap_curr_page(op_ctx, page);
>  
>  	return err;
>  }
> 


  reply	other threads:[~2026-09-28  9:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-27  8:25 [PATCH 0/3] drm/imagination: Fix pre-existing bugs flagged by Sashiko's review of a VM_BIND series Gyeyoung Baek
2026-09-27  8:25 ` [PATCH 1/3] drm/imagination: Fix reference and vm_bo handling in remap() Gyeyoung Baek
2026-09-28  9:10   ` Brajesh Gupta
2026-09-27  8:25 ` [PATCH 2/3] drm/imagination: Fix pvr_mmu_map_sgl() overwriting its own error Gyeyoung Baek
2026-09-28  9:01   ` Brajesh Gupta [this message]
2026-09-28  9:19     ` Gyeyoung Baek
2026-09-27  8:25 ` [PATCH 3/3] drm/imagination: Size page table preallocation by device address Gyeyoung Baek
2026-09-28  9:03   ` Brajesh Gupta

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