From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Sasha Levin <sashal@kernel.org>,
linux-pci@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 057/108] PCI: Fix pci_register_host_bridge() device_register() error handling
Date: Wed, 17 Jun 2020 21:25:09 -0400 [thread overview]
Message-ID: <20200618012600.608744-57-sashal@kernel.org> (raw)
In-Reply-To: <20200618012600.608744-1-sashal@kernel.org>
From: Rob Herring <robh@kernel.org>
[ Upstream commit 1b54ae8327a4d630111c8d88ba7906483ec6010b ]
If device_register() has an error, we should bail out of
pci_register_host_bridge() rather than continuing on.
Fixes: 37d6a0a6f470 ("PCI: Add pci_register_host_bridge() interface")
Link: https://lore.kernel.org/r/20200513223859.11295-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/probe.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index e23bfd9845b1..61ec17dd47e5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -792,9 +792,10 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
goto free;
err = device_register(&bridge->dev);
- if (err)
+ if (err) {
put_device(&bridge->dev);
-
+ goto free;
+ }
bus->bridge = get_device(&bridge->dev);
device_enable_async_suspend(bus->bridge);
pci_set_bus_of_node(bus);
--
2.25.1
next prev parent reply other threads:[~2020-06-18 1:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200618012600.608744-1-sashal@kernel.org>
2020-06-18 1:24 ` [PATCH AUTOSEL 4.14 020/108] PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register Sasha Levin
2020-06-18 1:25 ` [PATCH AUTOSEL 4.14 049/108] PCI: rcar: Fix incorrect programming of OB windows Sasha Levin
2020-06-18 1:25 ` [PATCH AUTOSEL 4.14 050/108] PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges Sasha Levin
2020-06-18 1:25 ` Sasha Levin [this message]
2020-06-18 1:25 ` [PATCH AUTOSEL 4.14 070/108] PCI/PTM: Inherit Switch Downstream Port PTM settings from Upstream Port Sasha Levin
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