Merge pull request #1 from dhalbert/circuitpython-i2c-cmd_mux-fix

Delete i2c cmd_mux semaphore more cleanly
adafruit · Mar 12, 2021 · f30a865 · f30a865
2 parents ebe7784 + 8dd3ea8
commit f30a865
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/components/driver/i2c.c b/components/driver/i2c.c
@@ -367,7 +367,9 @@ esp_err_t i2c_driver_delete(i2c_port_t i2c_num)
     p_i2c->intr_handle = NULL;
 
     if (p_i2c->cmd_mux) {
+        // Let any command in progress finish.
         xSemaphoreTake(p_i2c->cmd_mux, portMAX_DELAY);
+        xSemaphoreGive(p_i2c->cmd_mux);
         vSemaphoreDelete(p_i2c->cmd_mux);
     }
     if (p_i2c_obj[i2c_num]->cmd_evt_queue) {