From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: [PATCH v1 2/3] iommu/tegra-smmu: Properly release domain resources Date: Thu, 7 Mar 2019 01:50:08 +0300 Message-ID: <20190306225009.3391-3-digetx@gmail.com> References: <20190306225009.3391-1-digetx@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190306225009.3391-1-digetx@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Thierry Reding , Joerg Roedel , Jonathan Hunter Cc: iommu@lists.linux-foundation.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: iommu@lists.linux-foundation.org Release all memory allocations associated with a released domain and emit warning if domain is in-use at the time of destruction. Signed-off-by: Dmitry Osipenko --- drivers/iommu/tegra-smmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 8d30653cd13a..27b1249f0773 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -327,6 +327,9 @@ static void tegra_smmu_domain_free(struct iommu_domain *domain) /* TODO: free page directory and page tables */ + WARN_ON_ONCE(as->use_count); + kfree(as->count); + kfree(as->pts); kfree(as); } -- 2.20.1