[PATCH] scripts/kernel-doc: don't use uninitialized SRCTREE

[randy_dunlap <rdunlap@xenotime.net>]

From: Randy Dunlap <rdunlap@xenotime.net>

Current kernel-doc (perl) script generates this warning:
Use of uninitialized value in concatenation (.) or string at scripts/kernel-doc line 1668.

so explicitly check for SRCTREE in the ENV before using it,
and then if it is set, append a '/' to the end of it, otherwise
the SRCTREE + filename can (will) be missing the intermediate '/'.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>

diffstat:=
 scripts/kernel-doc |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletion(-)

diff -Naurp linux-2613-rc2/scripts/kernel-doc~kernel-doc-srctree linux-2613-rc2/scripts/kernel-doc
--- linux-2613-rc2/scripts/kernel-doc~kernel-doc-srctree	2005-06-17 12:48:29.000000000 -0700
+++ linux-2613-rc2/scripts/kernel-doc	2005-07-07 14:33:01.000000000 -0700
@@ -1665,11 +1665,17 @@ sub xml_escape($) {
 }
 
 sub process_file($) {
-    my ($file) = "$ENV{'SRCTREE'}@_";
+    my $file;
     my $identifier;
     my $func;
     my $initial_section_counter = $section_counter;
 
+    if (defined($ENV{'SRCTREE'})) {
+	$file = "$ENV{'SRCTREE'}" . "/" . "@_";
+    }
+    else {
+	$file = "@_";
+    }
     if (defined($source_map{$file})) {
 	$file = $source_map{$file};
     }

---
-
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