The patch titled checkpatch: returning errno typically should be negative has been added to the -mm tree. Its filename is checkpatch-returning-errno-typically-should-be-negative.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: checkpatch: returning errno typically should be negative From: Andy Whitcroft <apw@xxxxxxxxxxxxx> Add a (strict mode only) test to check for non-negative returns of what appear to be errno values as the majority case these should indeed be negative. Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andy Whitcroft <apw@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/checkpatch.pl | 7 +++++++ 1 file changed, 7 insertions(+) diff -puN scripts/checkpatch.pl~checkpatch-returning-errno-typically-should-be-negative scripts/checkpatch.pl --- a/scripts/checkpatch.pl~checkpatch-returning-errno-typically-should-be-negative +++ a/scripts/checkpatch.pl @@ -2204,6 +2204,13 @@ sub process { ERROR("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 = $1; + if ($name ne 'EOF' && $name ne 'ERROR') { + WARN("return of an errno should typically be -ve (return -$1)\n" . $herecurr); + } + } # Need a space before open parenthesis after if, while etc if ($line=~/\b(if|while|for|switch)\(/) { _ Patches currently in -mm which might be from apw@xxxxxxxxxxxxx are checkpatch-fix-regressions-in-fix-handling-of-leading-spaces.patch checkpatch-types-may-sit-on-a-line-on-their-own.patch checkpatch-suggest-cleanpatch-and-cleanfile-when-appropriate.patch checkpatch-ensure-we-do-not-collapse-bracketed-sections-into-constants.patch checkpatch-handle-casts-better-fixing-false-categorisation-of-as-binary.patch checkpatch-returning-errno-typically-should-be-negative.patch checkpatch-add-check-for-space-after-struct-union-and-enum.patch checkpatch-simplify-and-consolidate-missing-space-after-checks.patch checkpatch-ensure-kconfig-help-checks-only-apply-when-we-are-adding-help.patch checkpatch-check-for-incorrect-permissions.patch checkpatch-add-additional-attribute-defines.patch checkpatch-update-copyright-dates.patch checkpatch-clean-up-structure-definition-macro-handline.patch checkpatch-handle-export_symbol-for-device_attr-and-similar.patch checkpatch-statement-block-context-analyser-should-look-at-sanitised-lines.patch checkpatch-version-031.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html