From 842292523fe96568ec154872f140632e9d7699b6 Mon Sep 17 00:00:00 2001
From: michael <xiaoxufeng@espressif.com>
Date: Sat, 30 Sep 2017 18:26:55 +0800
Subject: [PATCH] fix(spi_slave): add interrupt free into bus free process.

---
 components/driver/spi_slave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/driver/spi_slave.c b/components/driver/spi_slave.c
index bfc700cea7..c65cb3b52a 100644
--- a/components/driver/spi_slave.c
+++ b/components/driver/spi_slave.c
@@ -222,6 +222,7 @@ esp_err_t spi_slave_free(spi_host_device_t host)
     }
     free(spihost[host]->dmadesc_tx);
     free(spihost[host]->dmadesc_rx);
+    esp_intr_free(spihost[host]->intr);
 #ifdef CONFIG_PM_ENABLE
     esp_pm_lock_release(spihost[host]->pm_lock);
     esp_pm_lock_delete(spihost[host]->pm_lock);
@@ -229,7 +230,6 @@ esp_err_t spi_slave_free(spi_host_device_t host)
     free(spihost[host]);
     spihost[host] = NULL;
     spicommon_periph_free(host);
-    spihost[host] = NULL;
     return ESP_OK;
 }