From: Eric Anholt <eric@anholt•net>
To: Chris Wilson <chris@chris-wilson•co.uk>,
Daniel Vetter <daniel@ffwll•ch>, Rob Herring <robh@kernel•org>
Cc: Neil Armstrong <narmstrong@baylibre•com>,
Maxime Ripard <maxime.ripard@bootlin•com>,
Sean Paul <sean@poorly•run>, Will Deacon <will.deacon@arm•com>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
dri-devel <dri-devel@lists•freedesktop.org>,
David Airlie <airlied@linux•ie>,
"list@263•net:IOMMU DRIVERS <iommu@lists•linux-foundation.org>,
Joerg Roedel <joro@8bytes•org>,
" <iommu@lists•linux-foundation.org>,
Alyssa Rosenzweig <alyssa@rosenzweig•io>,
Robin Murphy <robin.murphy@arm•com>,
Linux ARM <linux-arm-kernel@lists•infradead.org>
Subject: Re: [PATCH v2 2/3] drm: Add a drm_gem_objects_lookup helper
Date: Mon, 01 Apr 2019 08:43:47 -0700 [thread overview]
Message-ID: <8736n120jw.fsf@anholt.net> (raw)
In-Reply-To: <155412649586.24691.809508732198367112@skylake-alporthouse-com>
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Chris Wilson <chris@chris-wilson•co.uk> writes:
> Quoting Daniel Vetter (2019-04-01 14:06:48)
>> On Mon, Apr 1, 2019 at 9:47 AM Rob Herring <robh@kernel•org> wrote:
>> > +{
>> > + int i, ret = 0;
>> > + struct drm_gem_object *obj;
>> > +
>> > + spin_lock(&filp->table_lock);
>> > +
>> > + for (i = 0; i < count; i++) {
>> > + /* Check if we currently have a reference on the object */
>> > + obj = idr_find(&filp->object_idr, handle[i]);
>> > + if (!obj) {
>> > + ret = -ENOENT;
>
> Unwind previous drm_gem_object_get(), the caller has no idea how many
> were processed before the error.
I had the same thought, but the pattern we have is that you're loading
into a refcounted struct that will free the BOs when you're done,
anyway.
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next prev parent reply other threads:[~2019-04-01 15:44 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-01 7:47 [PATCH v2 0/3] Initial Panfrost driver Rob Herring
2019-04-01 7:47 ` [PATCH v3 1/3] iommu: io-pgtable: Add ARM Mali midgard MMU page table format Rob Herring
2019-04-01 19:11 ` Robin Murphy
2019-04-05 10:02 ` Robin Murphy
2019-04-11 13:15 ` Joerg Roedel
2019-04-05 9:42 ` Steven Price
2019-04-05 9:51 ` Robin Murphy
2019-04-05 10:36 ` Steven Price
2019-04-08 8:56 ` Steven Price
2019-04-01 7:47 ` [PATCH v2 2/3] drm: Add a drm_gem_objects_lookup helper Rob Herring
2019-04-01 13:06 ` Daniel Vetter
2019-04-01 13:48 ` Chris Wilson
2019-04-01 15:43 ` Eric Anholt [this message]
2019-04-08 20:09 ` Rob Herring
2019-04-09 16:55 ` Eric Anholt
2019-04-01 16:59 ` Rob Herring
2019-04-01 18:22 ` Eric Anholt
[not found] ` <20190401074730.12241-4-robh@kernel.org>
2019-04-01 8:24 ` [PATCH v2 3/3] drm/panfrost: Add initial panfrost driver Neil Armstrong
2019-04-01 19:17 ` Robin Murphy
2019-04-01 16:02 ` Eric Anholt
2019-04-01 19:12 ` Robin Murphy
2019-04-02 0:33 ` Alyssa Rosenzweig
2019-04-02 11:23 ` Robin Murphy
2019-04-03 4:57 ` Rob Herring
2019-04-05 12:57 ` Robin Murphy
[not found] ` <5efdc3cb-7367-65e1-d1bf-14051db5da10@arm.com>
2019-04-05 16:16 ` Alyssa Rosenzweig
2019-04-05 16:42 ` Steven Price
2019-04-05 16:53 ` Alyssa Rosenzweig
2019-04-15 9:18 ` Daniel Vetter
2019-04-15 9:30 ` Steven Price
2019-04-16 7:51 ` Daniel Vetter
2019-04-08 21:04 ` Rob Herring
2019-04-09 15:56 ` Tomeu Vizoso
2019-04-09 16:15 ` Rob Herring
2019-04-10 10:28 ` Steven Price
2019-04-10 10:19 ` Steven Price
2019-04-10 11:50 ` Tomeu Vizoso
2019-04-01 15:05 ` [PATCH v2 0/3] Initial Panfrost driver Alyssa Rosenzweig
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