1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3b268b3f2362..75b587e8ddfd 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2088,10 +2088,10 @@ sub process {
                                              "DT compatible string \"$compat\" appears un-documented -- check $dt_path\n" . $herecurr);
                                 }
 
-                                my $vendor = $compat;
                                 my $vendor_path = $dt_path . "vendor-prefixes.txt";
                                 next if (! -f $vendor_path);
-                                $vendor =~ s/^([a-zA-Z0-9\-]+)\,.*/$1/;
+                                next if $compat !~ /^([a-zA-Z0-9\-]+)\,/;
+                                my $vendor = $1;
                                 `grep -Eq "$vendor" $vendor_path`;
                                 if ( $? >> 8 ) {
                                         WARN("UNDOCUMENTED_DT_STRING",