[PATCH v3 3/5] PCI: dwc: Free MSI in the error code path of dw_pcie_host_init()

Jisheng Zhang
2019-03-18T09:56:24Z

If we ever did some msi related initializations, we need to call
dw_pcie_free_msi() in the error code path.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
---
drivers/pci/controller/dwc/pcie-designware-host.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index a71b874ae3c0..585080699675 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -483,7 +483,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
if (pp->ops->host_init) {
ret = pp->ops->host_init(pp);
if (ret)
- goto error;
+ goto err_free_msi;
}

pp->root_bus_nr = pp->busn->start;
@@ -497,7 +497,7 @@ int dw_pcie_host_init(struct pcie_port *pp)

ret = pci_scan_root_bus_bridge(bridge);
if (ret)
- goto error;
+ goto err_free_msi;

bus = bridge->bus;

@@ -513,6 +513,10 @@ int dw_pcie_host_init(struct pcie_port *pp)
pci_bus_add_devices(bus);
return 0;

+err_free_msi:
+ if (IS_ENABLED(CONFIG_PCI_MSI) && pci_msi_enabled() &&
+ !pp->ops->msi_host_init)
+ dw_pcie_free_msi(pp);
error:
pci_free_host_bridge(bridge);
return ret;
--
2.20.1