fix undefined string warning

Use of uninitialized value $kw in pattern match (m//) .. cgi-bin/LJ/Keywords.pm line 65.
dreamwidth · Feb 4, 2017 · 93ef028 · 93ef028
1 parent 9ea4199
commit 93ef028
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cgi-bin/LJ/Keywords.pm b/cgi-bin/LJ/Keywords.pm
@@ -62,7 +62,7 @@ sub get_sitekeyword_id {
     $autovivify = 1 unless defined $autovivify;
 
     # setup the keyword for use
-    return 0 unless $kw =~ /\S/;
+    return 0 unless defined $kw && $kw =~ /\S/;
     $kw = LJ::text_trim( $kw, LJ::BMAX_SITEKEYWORD, LJ::CMAX_SITEKEYWORD );
     $kw = LJ::utf8_lc( $kw ) unless $opts{allowmixedcase};