diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/zlib/zlib.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c index 918bad6b7d..df2a2501b2 100644 --- a/ext/zlib/zlib.c +++ b/ext/zlib/zlib.c @@ -1074,11 +1074,13 @@ loop: } if (err == Z_NEED_DICT) { VALUE self = (VALUE)z->stream.opaque; - VALUE dicts = rb_ivar_get(self, id_dictionaries); - VALUE dict = rb_hash_aref(dicts, rb_uint2inum(z->stream.adler)); - if (!NIL_P(dict)) { - rb_inflate_set_dictionary(self, dict); - goto loop; + if (self) { + VALUE dicts = rb_ivar_get(self, id_dictionaries); + VALUE dict = rb_hash_aref(dicts, rb_uint2inum(z->stream.adler)); + if (!NIL_P(dict)) { + rb_inflate_set_dictionary(self, dict); + goto loop; + } } } raise_zlib_error(err, z->stream.msg); |