From 7245e75f11074fbb221987cf32f0c999bbbafa5a Mon Sep 17 00:00:00 2001
From: Yury Norov <yury.norov@gmail.com>
Date: Tue, 24 Aug 2021 09:59:59 +1000
Subject: [PATCH] lib/vsprintf: don't increment buf in bitmap_list_string

Increment is confusing as the buf is overritten at the same line.

Link: https://lkml.kernel.org/r/20210817193735.269942-1-yury.norov@gmail.com
Fixes: b1c4af4d3d6b (vsprintf: rework bitmap_list_string) (next-20210817)
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Alexander Lobakin <alobakin@pm.me>
Cc: Alexey Klimov <aklimov@redhat.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 lib/vsprintf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index cd9f359c5bf9..9046c7720d96 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1261,7 +1261,7 @@ char *bitmap_list_string(char *buf, char *end, unsigned long *bitmap,
 
 		if (buf < end)
 			*buf = '-';
-		buf = number(++buf, end, rtop - 1, default_dec_spec);
+		buf = number(buf + 1, end, rtop - 1, default_dec_spec);
 	}
 	return buf;
 }
-- 
2.50.1