[PATCH v2] checkpatch: Don't warn about returning EPOLL* defines

[Ben Shelton]

The EPOLL* defines are bit definitions, not errno values, so they should
be returned as-is, not as negative values.

Signed-off-by: Ben Shelton <benjamin.h.shelton@xxxxxxxxx>
Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
---
 scripts/checkpatch.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 592911a..67ca588 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4869,7 +4869,8 @@ sub process {
 # Return of what appears to be an errno should normally be negative
 		if ($sline =~ /\breturn(?:\s*\(+\s*|\s+)(E[A-Z]+)(?:\s*\)+\s*|\s*)[;:,]/) {
 			my $name = $1;
-			if ($name ne 'EOF' && $name ne 'ERROR') {
+			if ($name ne 'EOF' && $name ne 'ERROR' &&
+			    $name !~ /EPOLL/) {
 				WARN("USE_NEGATIVE_ERRNO",
 				     "return of an errno should typically be negative (ie: return -$1)\n" . $herecurr);
 			}
-- 
2.6.4