From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ezequiel Garcia Subject: [PATCH] iommu: rockchip: Free domain on .domain_free Date: Wed, 2 Oct 2019 14:29:23 -0300 Message-ID: <20191002172923.22430-1-ezequiel@collabora.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Joerg Roedel , Heiko Stuebner Cc: iommu@lists.linux-foundation.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Ezequiel Garcia List-Id: linux-rockchip.vger.kernel.org IOMMU domain resource life is well-defined, managed by .domain_alloc and .domain_free. Therefore, domain-specific resources shouldn't be tied to the device life, but instead to its domain. Signed-off-by: Ezequiel Garcia --- drivers/iommu/rockchip-iommu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 26290f310f90..e845bd01a1a2 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -979,13 +979,13 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type) if (!dma_dev) return NULL; - rk_domain = devm_kzalloc(dma_dev, sizeof(*rk_domain), GFP_KERNEL); + rk_domain = kzalloc(sizeof(*rk_domain), GFP_KERNEL); if (!rk_domain) return NULL; if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(&rk_domain->domain)) - return NULL; + goto err_free_domain; /* * rk32xx iommus use a 2 level pagetable. @@ -1020,6 +1020,8 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type) err_put_cookie: if (type == IOMMU_DOMAIN_DMA) iommu_put_dma_cookie(&rk_domain->domain); +err_free_domain: + kfree(rk_domain); return NULL; } @@ -1048,6 +1050,7 @@ static void rk_iommu_domain_free(struct iommu_domain *domain) if (domain->type == IOMMU_DOMAIN_DMA) iommu_put_dma_cookie(&rk_domain->domain); + kfree(rk_domain); } static int rk_iommu_add_device(struct device *dev) -- 2.22.0