diff mbox series

PCI: dwc: Free MSI in the error code path of dw_pcie_host_init()

Message ID 20190318174749.44b8f7fc@xhacker.debian (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show
Series PCI: dwc: Free MSI in the error code path of dw_pcie_host_init() | expand

Commit Message

Jisheng Zhang March 18, 2019, 9:55 a.m. UTC 
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(-)

Comments

Jisheng Zhang March 18, 2019, 10 a.m. UTC | #1 
On Mon, 18 Mar 2019 17:47:49 +0800 Jisheng Zhang wrote:

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

Sorry, "PATCH" is missing in the email title, please ignore this one
diff mbox series

Patch

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;