drm/i915: reduce indent in pch detection

Save some horizontal space.
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180202130416.18233-1-jani.nikula@intel.com

drivers/gpu/drm/i915/i915_drv.c

@@ -182,8 +182,12 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv)
 	 * of only checking the first one.
 	 */
 	while ((pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, pch))) {
-		if (pch->vendor == PCI_VENDOR_ID_INTEL) {
-			unsigned short id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
+		unsigned short id;
+
+		if (pch->vendor != PCI_VENDOR_ID_INTEL)
+			continue;
+
+		id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
 
 		dev_priv->pch_id = id;
 
@@ -269,14 +273,13 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv)
 			    PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
 			    pch->subsystem_device ==
 			    PCI_SUBDEVICE_ID_QEMU)) {
-				dev_priv->pch_type =
-					intel_virt_detect_pch(dev_priv);
-			} else
+			dev_priv->pch_type = intel_virt_detect_pch(dev_priv);
+		} else {
 			continue;
+		}
 
 		break;
 	}
-	}
 	if (!pch)
 		DRM_DEBUG_KMS("No PCH found.\n");