fix: client__pollout always returning error, not handling error

client.s

@@ -137,15 +137,16 @@ client__pollout__shunt__finished:
     jl client__pollout__return
     mov word [pollfds + rbx * pollfd_size + 4], POLLIN
 
-client__pollout__no_line:
-    mov rax, -1024
-
 client__pollout__return:
     pop r13
     pop r12
     pop rbx
     ret
 
+client__pollout__no_line:
+    mov rax, -1024
+    jmp client__pollout__return
+
 ; rdi - fd
 client__shutdown_close:
     mov rax, SYS_SHUTDOWN

main.s

@@ -158,6 +158,8 @@ _client__pollout:
     mov rsi, r12
     mov rdx, r15
     call client__pollout
+    cmp rax, 0
+    jle _client__error_or_eof
     add r15, 1
     jmp scan__loop