* io.c (io_read): move StringValue() check before GetOpenFile().

  [ruby-dev:24959]


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@7376 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index 83a7abb5d..99cbd1fb5 100644
--- a/io.c
+++ b/io.c
@@ -1033,7 +1033,6 @@ read_all(fptr, siz, str)
 	str = rb_str_new(0, siz);
     }
     else {
-	StringValue(str);
 	rb_str_resize(str, siz);
     }
     for (;;) {
@@ -1198,6 +1197,7 @@ io_read(argc, argv, io)
     rb_scan_args(argc, argv, "02", &length, &str);
 
     if (NIL_P(length)) {
+	if (!NIL_P(str)) StringValue(str);
 	GetOpenFile(io, fptr);
 	rb_io_check_readable(fptr);	
 	return read_all(fptr, remain_size(fptr), str);