From 1fb67608b309bd7f49842fbdfb1dc2b18a250965 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sat, 14 May 2016 14:02:52 -0600
Subject: tiny-printf: Tidy up a few nits

- Rename 'w' to 'width' to make it more obvious what it is used for
- Use bool and int types instead of char to avoid register-masking on
32-bit machines

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index a06abed..fbd5368 100644
--- a/lib/tiny-printf.c
+++ b/lib/tiny-printf.c
@@ -52,8 +52,8 @@ int vprintf(const char *fmt, va_list va)
 		if (ch != '%') {
 			putc(ch);
 		} else {
-			char lz = 0;
-			char w = 0;
+			bool lz = false;
+			int width = 0;
 
 			ch = *(fmt++);
 			if (ch == '0') {
@@ -62,9 +62,9 @@ int vprintf(const char *fmt, va_list va)
 			}
 
 			if (ch >= '0' && ch <= '9') {
-				w = 0;
+				width = 0;
 				while (ch >= '0' && ch <= '9') {
-					w = (w * 10) + ch - '0';
+					width = (width * 10) + ch - '0';
 					ch = *fmt++;
 				}
 			}
@@ -73,7 +73,7 @@ int vprintf(const char *fmt, va_list va)
 			zs = 0;
 
 			switch (ch) {
-			case 0:
+			case '\0':
 				goto abort;
 			case 'u':
 			case 'd':
@@ -112,9 +112,9 @@ int vprintf(const char *fmt, va_list va)
 
 			*bf = 0;
 			bf = p;
-			while (*bf++ && w > 0)
-				w--;
-			while (w-- > 0)
+			while (*bf++ && width > 0)
+				width--;
+			while (width-- > 0)
 				putc(lz ? '0' : ' ');
 			if (p) {
 				while ((ch = *p++))
-- 
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