Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/drm_fops.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 429e07d..dc8c40b 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -359,9 +359,11 @@ 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)
+ struct pci_bus *b = pci_get_next_root_bus(NULL);
+ if (b) {
dev->hose = b->sysdata;
+ pci_bus_put(b);
+ }
}
}
#endif
--
1.8.1.2
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