From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Dinghao Liu <dinghao.liu@zju.edu.cn>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Thierry Reding <treding@nvidia.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10 14/47] PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert()
Date: Thu, 20 May 2021 11:22:12 +0200 [thread overview]
Message-ID: <20210520092054.013591562@linuxfoundation.org> (raw)
In-Reply-To: <20210520092053.559923764@linuxfoundation.org>
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
[ Upstream commit 5859c926d1f052ee61b5815b14658875c14f6243 ]
pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.
Link: https://lore.kernel.org/r/20210408072700.15791-1-dinghao.liu@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/controller/dwc/pcie-tegra194.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index f920e7efe118..d788f4d7f9aa 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1660,7 +1660,7 @@ static void pex_ep_event_pex_rst_deassert(struct tegra_pcie_dw *pcie)
if (pcie->ep_state == EP_STATE_ENABLED)
return;
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0) {
dev_err(dev, "Failed to get runtime sync for PCIe dev: %d\n",
ret);
--
2.30.2
next prev parent reply other threads:[~2021-05-20 9:29 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-20 9:21 [PATCH 5.10 00/47] 5.10.39-rc1 review Greg Kroah-Hartman
2021-05-20 9:21 ` [PATCH 5.10 01/47] x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 02/47] drm/i915/display: fix compiler warning about array overrun Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 03/47] airo: work around stack usage warning Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 04/47] kgdb: fix gcc-11 warning on indentation Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 05/47] usb: sl811-hcd: improve misleading indentation Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 06/47] cxgb4: Fix the -Wmisleading-indentation warning Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 07/47] isdn: capi: fix mismatched prototypes Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 08/47] virtio_net: Do not pull payload in skb->head Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 09/47] ARM: 9058/1: cache-v7: refactor v7_invalidate_l1 to avoid clobbering r5/r6 Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 10/47] PCI: thunder: Fix compile testing Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 11/47] dmaengine: dw-edma: Fix crash on loading/unloading driver Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 12/47] ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend() Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 13/47] ACPI / hotplug / PCI: Fix reference count leak in enable_slot() Greg Kroah-Hartman
2021-05-20 9:22 ` Greg Kroah-Hartman [this message]
2021-05-20 9:22 ` [PATCH 5.10 15/47] Input: elants_i2c - do not bind to i2c-hid compatible ACPI instantiated devices Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 16/47] Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 17/47] NFS: NFS_INO_REVAL_PAGECACHE should mark the change attribute invalid Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 18/47] um: Mark all kernel symbols as local Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 19/47] um: Disable CONFIG_GCOV with MODULES Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 20/47] PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 21/47] ARM: 9075/1: kernel: Fix interrupted SMC calls Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 22/47] platform/chrome: cros_ec_typec: Add DP mode check Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 23/47] riscv: Use $(LD) instead of $(CC) to link vDSO Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 24/47] scripts/recordmcount.pl: Fix RISC-V regex for clang Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 25/47] riscv: Workaround mcount name prior to clang-13 Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 26/47] scsi: lpfc: Fix illegal memory access on Abort IOCBs Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 27/47] ceph: fix fscache invalidation Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 28/47] ceph: dont clobber i_snap_caps on non-I_NEW inode Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 29/47] ceph: dont allow access to MDS-private inodes Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 30/47] scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 31/47] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 32/47] bridge: Fix possible races between assigning rx_handler_data and setting IFF_BRIDGE_PORT bit Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 33/47] net: hsr: check skb can contain struct hsr_ethhdr in fill_frame_info Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 34/47] nvmet: remove unsupported command noise Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 35/47] drm/amd/display: Fix two cursor duplication when using overlay Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 36/47] gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055 Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 37/47] net:CXGB4: fix leak if sk_buff is not used Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 38/47] ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 39/47] block: reexpand iov_iter after read/write Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 40/47] lib: stackdepot: turn depot_lock spinlock to raw_spinlock Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 41/47] net: stmmac: Do not enable RX FIFO overflow interrupts Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 42/47] ip6_gre: proper dev_{hold|put} in ndo_[un]init methods Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 43/47] sit: " Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 44/47] ip6_tunnel: " Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 45/47] ipv6: remove extra dev_hold() for fallback tunnels Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 46/47] tweewide: Fix most Shebang lines Greg Kroah-Hartman
2021-05-20 9:22 ` [PATCH 5.10 47/47] scripts: switch explicitly to Python 3 Greg Kroah-Hartman
2021-05-20 11:24 ` [PATCH 5.10 00/47] 5.10.39-rc1 review Pavel Machek
2021-05-20 12:32 ` Jon Hunter
2021-05-20 12:59 ` Greg Kroah-Hartman
2021-05-20 14:07 ` Fox Chen
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