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From: Dmitry Osipenko <digetx@gmail.com>
To: Joerg Roedel <joro@8bytes.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Rob Herring <robh+dt@kernel.org>
Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 15/19] iommu/tegra: gart: Don't use managed resources
Date: Sat, 18 Aug 2018 18:54:26 +0300	[thread overview]
Message-ID: <20180818155430.5586-16-digetx@gmail.com> (raw)
In-Reply-To: <20180818155430.5586-1-digetx@gmail.com>

GART is a part of the Memory Controller driver that is always built-in,
hence there is no benefit from the use of managed resources.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/iommu/tegra-gart.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 9f7d3afb686f..d019ae8ecfc9 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -171,7 +171,7 @@ static int gart_iommu_attach_dev(struct iommu_domain *domain,
 	struct gart_client *client, *c;
 	int err = 0;
 
-	client = devm_kzalloc(gart->dev, sizeof(*c), GFP_KERNEL);
+	client = kzalloc(sizeof(*c), GFP_KERNEL);
 	if (!client)
 		return -ENOMEM;
 	client->dev = dev;
@@ -197,7 +197,7 @@ static int gart_iommu_attach_dev(struct iommu_domain *domain,
 	return 0;
 
 fail:
-	devm_kfree(gart->dev, client);
+	kfree(client);
 	spin_unlock(&gart->client_lock);
 	return err;
 }
@@ -212,7 +212,7 @@ static void __gart_iommu_detach_dev(struct iommu_domain *domain,
 	list_for_each_entry(c, &gart->client, list) {
 		if (c->dev == dev) {
 			list_del(&c->list);
-			devm_kfree(gart->dev, c);
+			kfree(c);
 			if (list_empty(&gart->client))
 				gart->active_domain = NULL;
 			dev_dbg(gart->dev, "Detached %s\n", dev_name(dev));
@@ -459,7 +459,7 @@ struct gart_device *tegra_gart_probe(struct device *dev,
 		return ERR_PTR(-ENXIO);
 	}
 
-	gart = devm_kzalloc(dev, sizeof(*gart), GFP_KERNEL);
+	gart = kzalloc(sizeof(*gart), GFP_KERNEL);
 	if (!gart) {
 		dev_err(dev, "failed to allocate gart_device\n");
 		return ERR_PTR(-ENOMEM);
@@ -468,7 +468,7 @@ struct gart_device *tegra_gart_probe(struct device *dev,
 	ret = iommu_device_sysfs_add(&gart->iommu, dev, NULL, "gart");
 	if (ret) {
 		dev_err(dev, "Failed to register IOMMU in sysfs\n");
-		return ERR_PTR(ret);
+		goto free_gart;
 	}
 
 	iommu_device_set_ops(&gart->iommu, &gart_iommu_ops);
@@ -506,6 +506,8 @@ struct gart_device *tegra_gart_probe(struct device *dev,
 	iommu_device_unregister(&gart->iommu);
 remove_sysfs:
 	iommu_device_sysfs_remove(&gart->iommu);
+free_gart:
+	kfree(gart);
 
 	return ERR_PTR(ret);
 }
-- 
2.18.0

  parent reply	other threads:[~2018-08-18 15:54 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-18 15:54 [PATCH v3 00/19] IOMMU: Tegra GART driver clean up and optimization Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 01/19] iommu/tegra: gart: Remove pr_fmt and clean up includes Dmitry Osipenko
     [not found] ` <20180818155430.5586-1-digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-08-18 15:54   ` [PATCH v3 02/19] iommu/tegra: gart: Clean up driver probe errors handling Dmitry Osipenko
2018-08-18 15:54   ` [PATCH v3 04/19] iommu: Introduce iotlb_sync_map callback Dmitry Osipenko
2018-08-18 15:54   ` [PATCH v3 06/19] dt-bindings: memory: tegra: Squash tegra20-gart into tegra20-mc Dmitry Osipenko
2018-08-20 19:12     ` Rob Herring
2018-08-20 19:27       ` Dmitry Osipenko
     [not found]         ` <b46cac22-9b31-9aa7-7eca-4725156346bb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-08-20 19:35           ` Dmitry Osipenko
     [not found]             ` <4538309b-fcb3-73ee-04e3-6cefcedd376d-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-08-28 10:47               ` Thierry Reding
2018-08-28 13:09                 ` Dmitry Osipenko
2018-08-18 15:54   ` [PATCH v3 07/19] ARM: dts: tegra20: Update Memory Controller node to the new binding Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 03/19] iommu/tegra: gart: Ignore devices without IOMMU phandle in DT Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 05/19] iommu/tegra: gart: Optimize mapping / unmapping performance Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 08/19] memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 09/19] memory: tegra: Adapt to Tegra20 device-tree binding changes Dmitry Osipenko
2018-09-03 21:06   ` Marcel Ziswiler
2018-09-04  8:56     ` Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 10/19] memory: tegra: Read client ID on GART page fault Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 11/19] iommu/tegra: gart: Integrate with Memory Controller driver Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 12/19] iommu/tegra: gart: Fix spinlock recursion Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 13/19] iommu/tegra: gart: Fix NULL pointer dereference Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 14/19] iommu/tegra: gart: Allow only one active domain at a time Dmitry Osipenko
2018-08-18 15:54 ` Dmitry Osipenko [this message]
2018-08-18 15:54 ` [PATCH v3 16/19] iommu/tegra: gart: Prepend error/debug messages with "GART:" Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 17/19] iommu/tegra: gart: Don't detach devices from inactive domains Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 18/19] iommu/tegra: gart: Simplify clients-tracking code Dmitry Osipenko
2018-08-18 15:54 ` [PATCH v3 19/19] iommu/tegra: gart: Perform code refactoring Dmitry Osipenko

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