From: Tuan PM <tuanpm@live.com>
Date: Wed, 7 Jun 2017 07:32:32 +0000 (+0700)
Subject: i2s: return error code if register isr error, resolve #587 (github)
X-Git-Tag: v3.1-dev~491^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f91715438ad20dd71ec6bb6bb857e50da7d86602;p=esp-idf

i2s: return error code if register isr error, resolve #587 (github)

set p_i2s_obj = NULL when return error
---

diff --git a/components/driver/i2s.c b/components/driver/i2s.c
index ac0c3fb077..f78745f329 100644
--- a/components/driver/i2s.c
+++ b/components/driver/i2s.c
@@ -868,8 +868,9 @@ esp_err_t i2s_driver_install(i2s_port_t i2s_num, const i2s_config_t *i2s_config,
         err = i2s_isr_register(i2s_num, i2s_config->intr_alloc_flags, i2s_intr_handler_default, p_i2s_obj[i2s_num], &p_i2s_obj[i2s_num]->i2s_isr_handle);
         if (err != ESP_OK) {
             free(p_i2s_obj[i2s_num]);
+            p_i2s_obj[i2s_num] = NULL;
             ESP_LOGE(I2S_TAG, "Register I2S Interrupt error");
-            return ESP_FAIL;
+            return err;
         }
         i2s_stop(i2s_num);
         i2s_param_config(i2s_num, i2s_config);