X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fusb%2Fgadget%2Fu_f.c;fp=kernel%2Fdrivers%2Fusb%2Fgadget%2Fu_f.c;h=c6276f0268ae51e0b9669db69ebbb58c46e794ba;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/usb/gadget/u_f.c b/kernel/drivers/usb/gadget/u_f.c
new file mode 100644
index 000000000..c6276f026
--- /dev/null
+++ b/kernel/drivers/usb/gadget/u_f.c
@@ -0,0 +1,32 @@
+/*
+ * u_f.c -- USB function utilities for Gadget stack
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/usb/gadget.h>
+#include "u_f.h"
+
+struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
+{
+	struct usb_request      *req;
+
+	req = usb_ep_alloc_request(ep, GFP_ATOMIC);
+	if (req) {
+		req->length = len ?: default_len;
+		req->buf = kmalloc(req->length, GFP_ATOMIC);
+		if (!req->buf) {
+			usb_ep_free_request(ep, req);
+			req = NULL;
+		}
+	}
+	return req;
+}
+EXPORT_SYMBOL_GPL(alloc_ep_req);