Re: [PATCH v3 11/22] PCI, drm: Kill pci_root_buses in alpha hose setting

[Yijing Wang <wangyijing@huawei.com>]

On 2013/1/28 3:23, Yinghai Lu wrote:
> Replace that with hotplug-safe version.
> 
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> Cc: David Airlie <airlied@linux.ie>
> Cc: dri-devel@lists.freedesktop.org
> ---
>  drivers/gpu/drm/drm_fops.c |   10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
> index 133b413..b92a9cc 100644
> --- a/drivers/gpu/drm/drm_fops.c
> +++ b/drivers/gpu/drm/drm_fops.c
> @@ -356,9 +356,13 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
>  			pci_dev_put(pci_dev);
>  		}
>  		if (!dev->hose) {
> -			struct pci_bus *b = pci_bus_b(pci_root_buses.next);
> -			if (b)
> -				dev->hose = b->sysdata;
> +			struct pci_host_bridge *host_bridge;
> +
> +			host_bridge = pci_next_host_bridge(NULL);

pci_get_next_host_bridge() ?

> +			if (host_bridge) {
> +				dev->hose = host_bridge->bus->sysdata;
> +				put_device(&host_bridge->dev);
> +			}
>  		}
>  	}
>  #endif
> 


-- 
Thanks!
Yijing