[PATCH 2/2] checkpatch: skip directories in file checking mode

[Rob Herring <robherring2@gmail.com>]

From: Rob Herring <robh@kernel.org>

Running checkpatch.pl on a list of files using a wildcard will exit if
a directory is encountered. For example:

$ scripts/checkpatch.pl -f arch/*
diff: arch/alpha/null: No such file or directory

The correct operation is arch/Kconfig should be checked. Fix this by
skipping files which are not regular files.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 0e960b1..b646b95 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -552,6 +552,7 @@ my $vname;
 for my $filename (@ARGV) {
 	my $FILE;
 	if ($file) {
+		next if (!(-f $filename));
 		open($FILE, '-|', "diff -u /dev/null $filename") ||
 			die "$P: $filename: diff failed - $!\n";
 	} elsif ($filename eq '-') {
-- 
1.9.1