USB: Make struct devrequest setup_packet local

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Remy Bohmer <linux@bohmer.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/common/usb.c b/common/usb.c
index 81dcbe2..3c9ede4 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -73,7 +73,6 @@
 static int dev_index;
 static int running;
 static int asynch_allowed;
-static struct devrequest setup_packet;
 
 char usb_started; /* flag for the started/stopped USB status */
 
@@ -180,6 +179,8 @@
 			unsigned short value, unsigned short index,
 			void *data, unsigned short size, int timeout)
 {
+	struct devrequest setup_packet;
+
 	if ((timeout == 0) && (!asynch_allowed)) {
 		/* request for a asynch control pipe is not allowed */
 		return -1;