From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Peng Wu <wupeng58@huawei.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>,
christophe.leroy@csgroup.eu, nick.child@ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 5.10 24/26] powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
Date: Wed, 1 Jun 2022 09:57:57 -0400 [thread overview]
Message-ID: <20220601135759.2004435-24-sashal@kernel.org> (raw)
In-Reply-To: <20220601135759.2004435-1-sashal@kernel.org>
From: Peng Wu <wupeng58@huawei.com>
[ Upstream commit 57b742a5b8945118022973e6416b71351df512fb ]
The device_node pointer is returned by of_find_compatible_node
with refcount incremented. We should use of_node_put() to avoid
the refcount leak.
Signed-off-by: Peng Wu <wupeng58@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220425081245.21705-1-wupeng58@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/sysdev/dart_iommu.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 6b4a34b36d98..8ff9bcfe4b8d 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -403,9 +403,10 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
}
/* Initialize the DART HW */
- if (dart_init(dn) != 0)
+ if (dart_init(dn) != 0) {
+ of_node_put(dn);
return;
-
+ }
/*
* U4 supports a DART bypass, we use it for 64-bit capable devices to
* improve performance. However, that only works for devices connected
@@ -418,6 +419,7 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
/* Setup pci_dma ops */
set_pci_dma_ops(&dma_iommu_ops);
+ of_node_put(dn);
}
#ifdef CONFIG_PM
--
2.35.1
next prev parent reply other threads:[~2022-06-01 14:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-01 13:57 [PATCH AUTOSEL 5.10 01/26] IB/rdmavt: add missing locks in rvt_ruc_loopback Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 02/26] ARM: dts: ox820: align interrupt controller node name with dtschema Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 03/26] ARM: dts: s5pv210: align DMA channels " Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 04/26] arm64: dts: qcom: msm8994: Fix BLSP[12]_DMA channels count Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 05/26] PM / devfreq: rk3399_dmc: Disable edev on remove() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 06/26] crypto: ccree - use fine grained DMA mapping dir Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 07/26] soc: ti: ti_sci_pm_domains: Check for null return of devm_kcalloc Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 08/26] fs: jfs: fix possible NULL pointer dereference in dbFree() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 09/26] arm64: Expand ESR_ELx_WFx_ISS_TI to match its ARMv8.7 definition Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 10/26] ARM: OMAP1: clock: Fix UART rate reporting algorithm Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 11/26] selftests/resctrl: Change the default limited time to 120 seconds Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 12/26] powerpc/fadump: Fix fadump to work with a different endian capture kernel Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 13/26] fat: add ratelimit to fat*_ent_bread() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 14/26] pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 15/26] ARM: versatile: Add missing of_node_put in dcscb_init Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 16/26] ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 17/26] ARM: hisi: Add missing of_node_put after of_find_compatible_node Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 18/26] PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 19/26] tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 20/26] powerpc/powernv/vas: Assign real address to rx_fifo in vas_rx_win_attr Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 21/26] powerpc/xics: fix refcount leak in icp_opal_init() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 22/26] powerpc/powernv: fix missing of_node_put in uv_init() Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 23/26] macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled Sasha Levin
2022-06-01 13:57 ` Sasha Levin [this message]
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 25/26] RDMA/hfi1: Prevent panic when SDMA " Sasha Levin
2022-06-01 13:57 ` [PATCH AUTOSEL 5.10 26/26] drm: fix EDID struct for old ARM OABI format Sasha Levin
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