diff --git a/esphome/components/socket/lwip_raw_tcp_impl.cpp b/esphome/components/socket/lwip_raw_tcp_impl.cpp index 5b8ad5b358..6a03a5fba5 100644 --- a/esphome/components/socket/lwip_raw_tcp_impl.cpp +++ b/esphome/components/socket/lwip_raw_tcp_impl.cpp @@ -86,7 +86,9 @@ void socket_delay(uint32_t ms) { s_socket_woke = false; return; } - s_socket_woke = false; + // Don't clear s_socket_woke here — if an IRQ fires between the check above + // and the while loop below, the while condition sees it immediately. Clearing + // here would lose that wake and sleep until the timer fires. s_delay_expired = false; // Set a one-shot timer to wake us after the timeout. // add_alarm_in_ms returns >0 on success, 0 if time already passed, <0 on error. @@ -104,6 +106,7 @@ void socket_delay(uint32_t ms) { // Cancel timer if we woke early (socket data arrived before timeout) if (!s_delay_expired) cancel_alarm(alarm); + s_socket_woke = false; // consume the wake for next call } // No IRAM_ATTR equivalent needed: on RP2040, CYW43 async_context runs LWIP