Merge branch 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: make sure the drawable code doesn't call malloc(0).
  drm/radeon: add more IGP chipset pci ids
  drm: Spinlock initializer cleanup

drivers/char/drm/drm_drawable.c

@@ -172,38 +172,49 @@ int drm_rmdraw(DRM_IOCTL_ARGS)
 
 		bitfield_length = idx + 1;
 
-		if (idx != id / (8 * sizeof(*bitfield)))
-			bitfield = drm_alloc(bitfield_length *
-					     sizeof(*bitfield), DRM_MEM_BUFS);
+		bitfield = NULL;
 
-		if (!bitfield && bitfield_length) {
-			bitfield = dev->drw_bitfield;
-			bitfield_length = dev->drw_bitfield_length;
+		if (bitfield_length) {
+			if (bitfield_length != dev->drw_bitfield_length)
+				bitfield = drm_alloc(bitfield_length *
+						     sizeof(*bitfield),
+						     DRM_MEM_BUFS);
+
+			if (!bitfield) {
+				bitfield = dev->drw_bitfield;
+				bitfield_length = dev->drw_bitfield_length;
+			}
 		}
 	}
 
 	if (bitfield != dev->drw_bitfield) {
 		info_length = 8 * sizeof(*bitfield) * bitfield_length;
 
-		info = drm_alloc(info_length * sizeof(*info), DRM_MEM_BUFS);
+		if (info_length) {
+			info = drm_alloc(info_length * sizeof(*info),
+					 DRM_MEM_BUFS);
 
-		if (!info && info_length) {
-			info = dev->drw_info;
-			info_length = dev->drw_info_length;
-		}
+			if (!info) {
+				info = dev->drw_info;
+				info_length = dev->drw_info_length;
+			}
+		} else
+			info = NULL;
 
 		spin_lock_irqsave(&dev->drw_lock, irqflags);
 
-		memcpy(bitfield, dev->drw_bitfield, bitfield_length *
-		       sizeof(*bitfield));
+		if (bitfield)
+			memcpy(bitfield, dev->drw_bitfield, bitfield_length *
+			       sizeof(*bitfield));
 		drm_free(dev->drw_bitfield, sizeof(*bitfield) *
 			 dev->drw_bitfield_length, DRM_MEM_BUFS);
 		dev->drw_bitfield = bitfield;
 		dev->drw_bitfield_length = bitfield_length;
 
 		if (info != dev->drw_info) {
-			memcpy(info, dev->drw_info, info_length *
-			       sizeof(*info));
+			if (info)
+				memcpy(info, dev->drw_info, info_length *
+				       sizeof(*info));
 			drm_free(dev->drw_info, sizeof(*info) *
 				 dev->drw_info_length, DRM_MEM_BUFS);
 			dev->drw_info = info;

drivers/char/drm/drm_pciids.h

@@ -102,13 +102,20 @@
 	{0x1002, 0x5653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP}, \
 	{0x1002, 0x5835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY}, \
+	{0x1002, 0x5954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
 	{0x1002, 0x5955, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+	{0x1002, 0x5974, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+	{0x1002, 0x5975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
 	{0x1002, 0x5960, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5961, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5962, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5964, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5965, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
+	{0x1002, 0x5a41, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+	{0x1002, 0x5a42, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+	{0x1002, 0x5a61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+	{0x1002, 0x5a62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
 	{0x1002, 0x5b60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5b62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5b63, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \

drivers/char/drm/i915_irq.c

@@ -582,7 +582,7 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	dev_priv->swaps_lock = SPIN_LOCK_UNLOCKED;
+	spin_lock_init(&dev_priv->swaps_lock);
 	INIT_LIST_HEAD(&dev_priv->vbl_swaps.head);
 	dev_priv->swaps_pending = 0;