[PATCH] PCIe: portdrv: call pci_disable_device during remove

[PATCH] PCIe: portdrv: call pci_disable_device during remove

[Alex Chiang]

The PCIe port driver calls pci_enable_device() during probe but
never calls pci_disable_device() during remove.

Cc: stable@kernel.org
Signed-off-by: Alex Chiang <achiang@hp.com>
---
This is a bug in the original PCIe port driver code, and should
be backported to the .27 and .28 stable series.

The implementation of the PCIe port driver is different in
linux-next, and I have a different patch for that.
---
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 248b4db..5ea566e 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -103,6 +103,7 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
 static void pcie_portdrv_remove (struct pci_dev *dev)
 {
 	pcie_port_device_remove(dev);
+	pci_disable_device(dev);
 	kfree(pci_get_drvdata(dev));
 }
 

[PATCH] PCIe: portdrv: call pci_disable_device during remove

[Alex Chiang]

The PCIe port driver calls pci_enable_device when registering
ports, but never calls pci_disable_device during removal.

Signed-off-by: Alex Chiang <achiang@hp.com>
---
This patch is against jbarnes's linux-next branch.
---
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 5a5bfe7..e399825 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -473,6 +473,7 @@ void pcie_port_device_remove(struct pci_dev *dev)
 	struct pcie_port_data *port_data = pci_get_drvdata(dev);
 
 	device_for_each_child(&dev->dev, NULL, remove_iter);
+	pci_disable_device(dev);
 
 	switch (port_data->port_irq_mode) {
 	case PCIE_PORT_MSIX_MODE:

Re: [PATCH] PCIe: portdrv: call pci_disable_device during remove

[Rafael J. Wysocki]

On Sunday 08 March 2009, Alex Chiang wrote:
> The PCIe port driver calls pci_enable_device() during probe but
> never calls pci_disable_device() during remove.
> 
> Cc: stable@kernel.org
> Signed-off-by: Alex Chiang <achiang@hp.com>
> ---
> This is a bug in the original PCIe port driver code, and should
> be backported to the .27 and .28 stable series.
> 
> The implementation of the PCIe port driver is different in
> linux-next, and I have a different patch for that.

Fine with me.

> ---
> diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
> index 248b4db..5ea566e 100644
> --- a/drivers/pci/pcie/portdrv_pci.c
> +++ b/drivers/pci/pcie/portdrv_pci.c
> @@ -103,6 +103,7 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
>  static void pcie_portdrv_remove (struct pci_dev *dev)
>  {
>  	pcie_port_device_remove(dev);
> +	pci_disable_device(dev);
>  	kfree(pci_get_drvdata(dev));
>  }

Thanks,
Rafael

Re: [PATCH] PCIe: portdrv: call pci_disable_device during remove

[Alex Chiang]

Forgot to cc Rafael on this one.

/ac

* Alex Chiang <achiang@hp.com>:
> The PCIe port driver calls pci_enable_device when registering
> ports, but never calls pci_disable_device during removal.
> 
> Signed-off-by: Alex Chiang <achiang@hp.com>
> ---
> This patch is against jbarnes's linux-next branch.
> ---
> diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
> index 5a5bfe7..e399825 100644
> --- a/drivers/pci/pcie/portdrv_core.c
> +++ b/drivers/pci/pcie/portdrv_core.c
> @@ -473,6 +473,7 @@ void pcie_port_device_remove(struct pci_dev *dev)
>  	struct pcie_port_data *port_data = pci_get_drvdata(dev);
>  
>  	device_for_each_child(&dev->dev, NULL, remove_iter);
> +	pci_disable_device(dev);
>  
>  	switch (port_data->port_irq_mode) {
>  	case PCIE_PORT_MSIX_MODE:
> --
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Re: [PATCH] PCIe: portdrv: call pci_disable_device during remove

[Rafael J. Wysocki]

On Sunday 08 March 2009, Alex Chiang wrote:
> The PCIe port driver calls pci_enable_device when registering
> ports, but never calls pci_disable_device during removal.
> 
> Signed-off-by: Alex Chiang <achiang@hp.com>

Acked-by: Rafael J. Wysocki <rjw@sisk.pl>

> ---
> This patch is against jbarnes's linux-next branch.
> ---
> diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
> index 5a5bfe7..e399825 100644
> --- a/drivers/pci/pcie/portdrv_core.c
> +++ b/drivers/pci/pcie/portdrv_core.c
> @@ -473,6 +473,7 @@ void pcie_port_device_remove(struct pci_dev *dev)
>  	struct pcie_port_data *port_data = pci_get_drvdata(dev);
>  
>  	device_for_each_child(&dev->dev, NULL, remove_iter);
> +	pci_disable_device(dev);
>  
>  	switch (port_data->port_irq_mode) {
>  	case PCIE_PORT_MSIX_MODE:
> --