linux-kernel - [PATCH] lib: fix uninitialized

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Message-Id: <20220316072709.4746-1-guozhengkui@vivo.com>
Date:   Wed, 16 Mar 2022 15:27:09 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     akpm@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, Guo Zhengkui <guozhengkui@...o.com>
Subject: [PATCH] lib: fix uninitialized_var.cocci warning

fix following coccicheck warning:
lib/glob.c:48:40-41: WARNING this kind of initialization is deprecated.

`char const *back_str = back_str` has the same form of
uninitialized_var() macro. I remove the redundant assignement. It has
been tested with gcc (Debian 8.3.0-6) 8.3.0.

The patch which removed uninitialized_var() is:
https://lore.kernel.org/all/20121028102007.GA7547@gmail.com/
And there is very few "/* GCC */" comments in the Linux kernel code now.

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
 lib/glob.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/glob.c b/lib/glob.c
index 85ecbda45cd8..15b73f490720 100644
--- a/lib/glob.c
+++ b/lib/glob.c
@@ -45,7 +45,7 @@ bool __pure glob_match(char const *pat, char const *str)
 	 * (no exception for /), it can be easily proved that there's
 	 * never a need to backtrack multiple levels.
 	 */
-	char const *back_pat = NULL, *back_str = back_str;
+	char const *back_pat = NULL, *back_str;

 	/*
 	 * Loop over each token (character or class) in pat, matching
-- 
2.20.1