diff options
| author |   Pali Rohár <pali@kernel.org> | 2020-09-07 13:10:35 +0200 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-09-07 14:27:53 +0100 |
| commit | 7862a6134456c8b4f8c39e8c94aa97e5c2f7f2b7 (patch) | |
| tree | 208c3b22556fd634fb161e80cc1e887f80994050 /drivers/pci/controller/pci-aardvark.c | |
| parent | PCI: aardvark: Fix compilation on s390 (diff) | |
| download | linux-dev-7862a6134456c8b4f8c39e8c94aa97e5c2f7f2b7.tar.xz linux-dev-7862a6134456c8b4f8c39e8c94aa97e5c2f7f2b7.zip | |
PCI: aardvark: Check for errors from pci_bridge_emul_init() call
Function pci_bridge_emul_init() may fail so correctly check for errors.
Link: https://lore.kernel.org/r/20200907111038.5811-3-pali@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Diffstat (limited to 'drivers/pci/controller/pci-aardvark.c')
| -rw-r--r-- | drivers/pci/controller/pci-aardvark.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 1c5f2fd47c51..2e2e2a2ff51d 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -607,7 +607,7 @@ static struct pci_bridge_emul_ops advk_pci_bridge_emul_ops = { * Initialize the configuration space of the PCI-to-PCI bridge * associated with the given PCIe interface. */ -static void advk_sw_pci_bridge_init(struct advk_pcie *pcie) +static int advk_sw_pci_bridge_init(struct advk_pcie *pcie) { struct pci_bridge_emul *bridge = &pcie->bridge; @@ -633,8 +633,7 @@ static void advk_sw_pci_bridge_init(struct advk_pcie *pcie) bridge->data = pcie; bridge->ops = &advk_pci_bridge_emul_ops; - pci_bridge_emul_init(bridge, 0); - + return pci_bridge_emul_init(bridge, 0); } static bool advk_pcie_valid_device(struct advk_pcie *pcie, struct pci_bus *bus, @@ -1167,7 +1166,11 @@ static int advk_pcie_probe(struct platform_device *pdev) advk_pcie_setup_hw(pcie); - advk_sw_pci_bridge_init(pcie); + ret = advk_sw_pci_bridge_init(pcie); + if (ret) { + dev_err(dev, "Failed to register emulated root PCI bridge\n"); + return ret; + } ret = advk_pcie_init_irq_domain(pcie); if (ret) { |