[PATCH] checkpatch.pl: Allow '+' in compatible strings

[Thierry Reding]

From: Thierry Reding <tred...@nvidia.com>

The current checks will interpret a '+' character as special because
they use regular expression matching. Escape the '+' character if it
appears in a compatible string.

Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4c820607540b..8104d0736e7f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3145,6 +3145,7 @@ sub process {
                        my $vp_file = $dt_path . "vendor-prefixes.yaml";
 
                        foreach my $compat (@compats) {
+                               $compat =~ s/\+/\\+/;
                                my $compat2 = $compat;
                                $compat2 =~ s/\,[a-zA-Z0-9]*\-/\,<\.\*>\-/;
                                my $compat3 = $compat;
-- 
2.27.0