+ lib-remove-back_str-initialization.patch added to -mm tree

+ lib-remove-back_str-initialization.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: lib: remove back_str initialization
has been added to the -mm tree.  Its filename is
     lib-remove-back_str-initialization.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/lib-remove-back_str-initialization.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/lib-remove-back_str-initialization.patch

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------------------------------------------------------
From: Tom Rix <trix@redhat.com>
Subject: lib: remove back_str initialization

Clang static analysis reports this false positive
glob.c:48:32: warning: Assigned value is garbage
  or undefined
  char const *back_pat = NULL, *back_str = back_str;
                                ^~~~~~~~   ~~~~~~~~

back_str is set after back_pat and it's use is protected by the !back_pat
check.  It is not necessary to initialize back_str, so remove the
initialization.

Link: https://lkml.kernel.org/r/20220402131546.3383578-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/glob.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/lib/glob.c~lib-remove-back_str-initialization
+++ a/lib/glob.c
@@ -45,7 +45,7 @@ bool __pure glob_match(char const *pat,
 	 * (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
_

Patches currently in -mm which might be from trix@redhat.com are

lib-remove-back_str-initialization.patch