svn commit: r194749 - head/sys/dev/drm

[Robert Noland]

Author: rnoland
Date: Tue Jun 23 18:24:09 2009
New Revision: 194749
URL: http://svn.freebsd.org/changeset/base/194749

Log:
  Only release irq resources if we were actually using them.
  
  MFC after:	3 days

Modified:
  head/sys/dev/drm/drm_drv.c

Modified: head/sys/dev/drm/drm_drv.c
==============================================================================
--- head/sys/dev/drm/drm_drv.c	Tue Jun 23 18:09:35 2009	(r194748)
+++ head/sys/dev/drm/drm_drv.c	Tue Jun 23 18:24:09 2009	(r194749)
@@ -273,11 +273,14 @@ int drm_detach(device_t kdev)
 
 	drm_unload(dev);
 
-	bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, dev->irqr);
-
-	if (dev->msi_enabled) {
-		pci_release_msi(dev->device);
-		DRM_INFO("MSI released\n");
+	if (dev->irqr) {
+		bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid,
+		    dev->irqr);
+
+		if (dev->msi_enabled) {
+			pci_release_msi(dev->device);
+			DRM_INFO("MSI released\n");
+		}
 	}
 
 	return 0;