[U-Boot] [RFC PATCH] USB: get rid of warning when compile with debug enabled

[Bo Shen]

When compile with debug information is enabled, if call
spin_lock_irqsave, it will give following warning information.
This patch is used to get rid of it.
--->8---
warning: 'flags' is used uninitialized in this function [-Wuninitialized]
---8<---

Signed-off-by: Bo Shen <voice.shen at atmel.com>
---

 include/usb/lin_gadget_compat.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/usb/lin_gadget_compat.h b/include/usb/lin_gadget_compat.h
index a25e9d9..fb525e7 100644
--- a/include/usb/lin_gadget_compat.h
+++ b/include/usb/lin_gadget_compat.h
@@ -15,7 +15,7 @@
 /* common */
 #define spin_lock_init(...)
 #define spin_lock(...)
-#define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
+#define spin_lock_irqsave(lock, flags) do { flags = 1; debug("%lu\n", flags); } while (0)
 #define spin_unlock(...)
 #define spin_unlock_irqrestore(lock, flags) do {flags = 0; } while (0)
 #define disable_irq(...)
-- 
1.8.5.2