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Subject[027/107] drm: populate irq_by_busid-member for pci
2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Wolfram Sang <w.sang@pengutronix.de>

commit 45e97ab65026a3391cb2c938f834ca5db4d2e5b3 upstream.

Commit 8410ea (drm: rework PCI/platform driver interface) implemented
drm_pci_irq_by_busid() but forgot to make it available in the
drm_pci_bus-struct.

This caused a freeze on my Radeon9600-equipped laptop when executing glxgears.
Thanks to Michel for noticing the flaw.

[airlied: made function static also]

Reported-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/gpu/drm/drm_pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -251,7 +251,7 @@ err:
}


-int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
+static int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
{
if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
(p->busnum & 0xff) != dev->pdev->bus->number ||
@@ -292,6 +292,7 @@ static struct drm_bus drm_pci_bus = {
.get_name = drm_pci_get_name,
.set_busid = drm_pci_set_busid,
.set_unique = drm_pci_set_unique,
+ .irq_by_busid = drm_pci_irq_by_busid,
.agp_init = drm_pci_agp_init,
};


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