Change in flashrom[master]: usb_device.h: Improve `LIBUSB_ERROR` macro

[Angel Pons (Code Review)]

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/51114 )

Change subject: usb_device.h: Improve `LIBUSB_ERROR` macro
......................................................................

usb_device.h: Improve `LIBUSB_ERROR` macro

Guard macro parameters and correct a typo in the parameter name.

TEST=Build with `make distclean && make VERSION=none -j` with and
     without this patch, the flashrom executable does not change.

Change-Id: Ifc917b001713bc96adee46019d267f2090ef184a
Signed-off-by: Angel Pons 
---
M usb_device.h
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/14/51114/1

diff --git a/usb_device.h b/usb_device.h
index b2c7656..4abf751 100644
--- a/usb_device.h
+++ b/usb_device.h
@@ -34,7 +34,7 @@
  * flashrom recognizes. It does so without displaying an error code allowing us
  * to compare error codes against the library enumeration values.
  */
-#define LIBUSB_ERROR(eror_code)		(0x20000 | -eror_code)
+#define LIBUSB_ERROR(error_code)	(0x20000 | -(error_code))

/*
  * The LIBUSB macro converts a libusb failure code into an error code that