thodg/got

diff --git a/lib/inflate.c b/lib/inflate.c
index 68d7827..b042614 100644
--- a/lib/inflate.c
+++ b/lib/inflate.c
@@ -425,6 +425,8 @@ got_inflate_to_mem_mmap(uint8_t **outbuf, size_t *outlen,
 		}
 	} else {
 		err = got_inflate_init(&zb, NULL, GOT_INFLATE_BUFSIZE, csum);
+		if (err)
+			return err;
 	}
 
 	*outlen = 0;