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[91.76.17.204]) by smtp.gmail.com with ESMTPSA id 130sm4045350lfl.37.2020.05.24.10.52.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 May 2020 10:52:45 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding Subject: [PATCH v1 2/4] gpu: host1x: Put gather's BO on pinning error Date: Sun, 24 May 2020 20:50:58 +0300 Message-Id: <20200524175100.9334-3-digetx@gmail.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200524175100.9334-1-digetx@gmail.com> References: <20200524175100.9334-1-digetx@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 25 May 2020 07:21:04 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This patch fixes gather's BO refcounting on a pinning error. Gather's BO won't be leaked now if something goes wrong. Signed-off-by: Dmitry Osipenko --- drivers/gpu/host1x/job.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index a954bd41aa79..89b6c14b7392 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -105,6 +105,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) { struct host1x_client *client = job->client; struct device *dev = client->dev; + struct host1x_job_gather *g; struct iommu_domain *domain; unsigned int i; int err; @@ -194,7 +195,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) return 0; for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; size_t gather_size = 0; struct scatterlist *sg; struct sg_table *sgt; @@ -204,6 +204,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) dma_addr_t *phys; unsigned int j; + g = &job->gathers[i]; g->bo = host1x_bo_get(g->bo); if (!g->bo) { err = -EINVAL; @@ -223,7 +224,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) sgt = host1x_bo_pin(host->dev, g->bo, phys); if (IS_ERR(sgt)) { err = PTR_ERR(sgt); - goto unpin; + goto put; } if (host->domain) { @@ -236,7 +237,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) host->iova_end >> shift, true); if (!alloc) { err = -ENOMEM; - goto unpin; + goto put; } err = iommu_map_sg(host->domain, @@ -245,7 +246,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) if (err == 0) { __free_iova(&host->iova, alloc); err = -EINVAL; - goto unpin; + goto put; } job->unpins[job->num_unpins].size = gather_size; @@ -255,7 +256,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) DMA_TO_DEVICE); if (!err) { err = -ENOMEM; - goto unpin; + goto put; } job->unpins[job->num_unpins].dir = DMA_TO_DEVICE; @@ -273,6 +274,8 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) return 0; +put: + host1x_bo_put(g->bo); unpin: host1x_job_unpin(job); return err;