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authorJoe Perches <joe@perches.com>2013-11-12 15:10:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 12:09:25 +0900
commit507e51418ca0c98640310aa02450720825b2b6b1 (patch)
treec31ed1d6e0fa1686ac3738aea997a82fc524bade /scripts
parent4783f894d0f3bfb107cf3b1d9aed1f1a0672ee1d (diff)
downloadlinux-linaro-stable-507e51418ca0c98640310aa02450720825b2b6b1.tar.gz
checkpatch: improve "return is not a function" test
Find a few more cases where parentheses are used around the value of a return statement. This now uses the "$balanced_parens" test and also makes the test depend on perl v5.10 and higher. This now finds return with parenthesis uses the old code did not find like: ERROR: return is not a function, parentheses are not required #211: FILE: arch/m68k/include/asm/sun3xflop.h:211: + return ((error == 0) ? 0 : -1); Signed-off-by: Joe Perches <joe@perches.com> Tested-by: David Cohen <david.a.cohen@linux.intel.com> Acked-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl18
1 files changed, 4 insertions, 14 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ec9bbf863d50..6e0f1ec0d6f2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3233,21 +3233,10 @@ sub process {
}
# Return is not a function.
- if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
+ if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) {
my $spacing = $1;
- my $value = $2;
-
- # Flatten any parentheses
- $value =~ s/\(/ \(/g;
- $value =~ s/\)/\) /g;
- while ($value =~ s/\[[^\[\]]*\]/1/ ||
- $value !~ /(?:$Ident|-?$Constant)\s*
- $Compare\s*
- (?:$Ident|-?$Constant)/x &&
- $value =~ s/\([^\(\)]*\)/1/) {
- }
-#print "value<$value>\n";
- if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
+ if ($^V && $^V ge 5.10.0 &&
+ $stat =~ /^.\s*return\s*$balanced_parens\s*;\s*$/) {
ERROR("RETURN_PARENTHESES",
"return is not a function, parentheses are not required\n" . $herecurr);
@@ -3256,6 +3245,7 @@ sub process {
"space required before the open parenthesis '('\n" . $herecurr);
}
}
+
# Return of what appears to be an errno should normally be -'ve
if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
my $name = $1;