[U-Boot] [PATCH 01/18] tiny-printf: Always print zeroes

[Simon Glass]

At present this does not print zero values in numeric format (hex and
decimal). Add a special case for this.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 lib/tiny-printf.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index efe5c25..a06abed 100644
--- a/lib/tiny-printf.c
+++ b/lib/tiny-printf.c
@@ -82,13 +82,21 @@ int vprintf(const char *fmt, va_list va)
 					num = -(int)num;
 					out('-');
 				}
-				for (div = 1000000000; div; div /= 10)
-					div_out(&num, div);
+				if (!num) {
+					out_dgt(0);
+				} else {
+					for (div = 1000000000; div; div /= 10)
+						div_out(&num, div);
+				}
 				break;
 			case 'x':
 				num = va_arg(va, unsigned int);
-				for (div = 0x10000000; div; div /= 0x10)
-					div_out(&num, div);
+				if (!num) {
+					out_dgt(0);
+				} else {
+					for (div = 0x10000000; div; div /= 0x10)
+						div_out(&num, div);
+				}
 				break;
 			case 'c':
 				out((char)(va_arg(va, int)));
-- 
2.6.0.rc2.230.g3dd15c0