diff mbox series

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

Message ID 20190318174841.522fb6fd@xhacker.debian (mailing list archive)
State New, archived
Headers show
Series PCI: dwc: Support remove | expand

Commit Message

Jisheng Zhang March 18, 2019, 9:56 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

Robin Murphy March 28, 2019, 5:08 p.m. UTC | #1
On 18/03/2019 09:56, Jisheng Zhang wrote:
> 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() &&

pci_msi_enabled() already has a stub for !CONFIG_PCI_MSI, so you 
shouldn't need an explicit IS_ENABLED() here.

Robin.

> +			!pp->ops->msi_host_init)
> +		dw_pcie_free_msi(pp);
>   error:
>   	pci_free_host_bridge(bridge);
>   	return ret;
>
Jisheng Zhang March 29, 2019, noon UTC | #2
On Thu, 28 Mar 2019 17:08:43 +0000 Robin Murphy wrote:

> 
> 
> On 18/03/2019 09:56, Jisheng Zhang wrote:
> > 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() &&  
> 
> pci_msi_enabled() already has a stub for !CONFIG_PCI_MSI, so you
> shouldn't need an explicit IS_ENABLED() here.

Indeed, thanks very much. updated in V4

Thanks
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;