[PATCH 1/7] fpga: wrap the write_init() op

@@ -69,6 +69,14 @@ void fpga_image_info_free(struct fpga_image_info *info)
 }
 EXPORT_SYMBOL_GPL(fpga_image_info_free);
 
+static int fpga_mgr_write_init(struct fpga_manager *mgr,
+			       struct fpga_image_info *info,
+			       const char *buf, size_t count)
+{
+	if (mgr->mops && mgr->mops->write_init)
+		return  mgr->mops->write_init(mgr, info, buf, count);
+	return 0;
+}
 /*
  * Call the low level driver's write_init function.  This will do the
  * device-specific things to get the FPGA into the state where it is ready to

@@ -83,9 +91,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr,
 
 	mgr->state = FPGA_MGR_STATE_WRITE_INIT;
 	if (!mgr->mops->initial_header_size)
-		ret = mgr->mops->write_init(mgr, info, NULL, 0);
+		ret = fpga_mgr_write_init(mgr, info, NULL, 0);
 	else
-		ret = mgr->mops->write_init(
+		ret = fpga_mgr_write_init(
 		    mgr, info, buf, min(mgr->mops->initial_header_size, count));
 
 	if (ret) {

@@ -569,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
 	int id, ret;
 
 	if (!mops || !mops->write_complete || !mops->state ||
-	    !mops->write_init || (!mops->write && !mops->write_sg) ||
+	    (!mops->write && !mops->write_sg) ||
 	    (mops->write && mops->write_sg)) {
 		dev_err(dev, "Attempt to register without fpga_manager_ops\n");
 		return NULL;