components/driver/spi_master: free dma descriptors

Signed-off-by: Jeroen Domburg <jeroen@espressif.com>

diff --git a/components/driver/spi_master.c b/components/driver/spi_master.c
index 5bf3955d06482a10a74bbe05ed694c22cf010a4d..8fa51048e766fa50e07c5f3a3968adda03730ac6 100644 (file)
--- a/components/driver/spi_master.c
+++ b/components/driver/spi_master.c
@@ -177,6 +177,8 @@ esp_err_t spi_bus_free(spi_host_device_t host)
     spihost[host]->hw->slave.trans_done=0;
     esp_intr_free(spihost[host]->intr);
     spicommon_periph_free(host);
+    free(spihost[host]->dmadesc_tx);
+    free(spihost[host]->dmadesc_rx);
     free(spihost[host]);
     spihost[host]=NULL;
     return ESP_OK;