linux-kernel - [PATCH 2/2] Fix wrong format string iter for printk

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Date:	Fri, 27 Mar 2009 17:09:10 +0800
From:	Zhaolei <zhaolei@...fujitsu.com>
To:	Lai Jiangshan <laijs@...fujitsu.com>, Ingo Molnar <mingo@...e.hu>,
	torvalds@...ux-foundation.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] Fix wrong format string iter for printk

printk("%Q");
Output before patch:
%QQ
Output after patch:
%Q

Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>
---
 lib/vsprintf.c |   16 ----------------
 1 files changed, 0 insertions(+), 16 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 908dd41..b56f6d0 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1062,13 +1062,6 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 			if (str < end)
 				*str = '%';
 			++str;
-			if (*fmt) {
-				if (str < end)
-					*str = *fmt;
-				++str;
-			} else {
-				--fmt;
-			}
 			break;
 
 		case FORMAT_TYPE_NRCHARS: {
@@ -1356,8 +1349,6 @@ do {									\
 			break;
 
 		case FORMAT_TYPE_INVALID:
-			if (!*fmt)
-				--fmt;
 			break;
 
 		case FORMAT_TYPE_NRCHARS: {
@@ -1544,13 +1535,6 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			if (str < end)
 				*str = '%';
 			++str;
-			if (*fmt) {
-				if (str < end)
-					*str = *fmt;
-				++str;
-			} else {
-				--fmt;
-			}
 			break;
 
 		case FORMAT_TYPE_NRCHARS:
-- 
1.5.5.3


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