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checkpatch: reduce false positives when checking void function return statements

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The previous patch had a few too many false positives on styles that
should be acceptable.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2014-06-23 13:22:07 -07:00 committed by Linus Torvalds
parent f9af420fc8
commit b43ae21bd1
1 changed files with 10 additions and 5 deletions
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15
scripts/checkpatch.pl
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@ -3476,12 +3476,17 @@ sub process {
}
}
# unnecessary return in a void function? (a single leading tab, then return;)
if ($sline =~ /^\+\treturn\s*;\s*$/ &&
$prevline =~ /^\+/) {
# unnecessary return in a void function
# at end-of-function, with the previous line a single leading tab, then return;
# and the line before that not a goto label target like "out:"
if ($sline =~ /^[ \+]}\s*$/ &&
$prevline =~ /^\+\treturn\s*;\s*$/ &&
$linenr >= 3 &&
$lines[$linenr - 3] =~ /^[ +]/ &&
$lines[$linenr - 3] !~ /^[ +]\s*$Ident\s*:/) {
WARN("RETURN_VOID",
"void function return statements are not generally useful\n" . $herecurr);
}
"void function return statements are not generally useful\n" . $hereprev);
}
# if statements using unnecessary parentheses - ie: if ((foo == bar))
if ($^V && $^V ge 5.10.0 &&