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

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