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fix(gpio): fix potential crash when processing gpio isr

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If CONFIG_SPIRAM_USE_MALLOC is enabled, and cache is disabled when GPIO ISR is triggered,
it would lead to Guru Meditation Error due to "Cache disabled but cached memory region accessed".

Closes https://github.com/espressif/esp-idf/issues/11876
This commit is contained in:
Song Ruo Jing 2023-07-18 23:26:46 +08:00
parent 55976a5bd7
commit 1da5dbf899
1 changed files with 4 additions and 2 deletions
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6
components/driver/gpio/gpio.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -7,6 +7,7 @@
#include <esp_types.h>
#include "esp_err.h"
#include "freertos/FreeRTOS.h"
#include "esp_heap_caps.h"
#include "driver/gpio.h"
#include "driver/rtc_io.h"
#include "soc/soc.h"
@ -464,8 +465,9 @@ esp_err_t gpio_install_isr_service(int intr_alloc_flags)
{
GPIO_CHECK(gpio_context.gpio_isr_func == NULL, "GPIO isr service already installed", ESP_ERR_INVALID_STATE);
esp_err_t ret;
const uint32_t alloc_caps = (intr_alloc_flags & ESP_INTR_FLAG_IRAM) ? MALLOC_CAP_INTERNAL : MALLOC_CAP_DEFAULT;
portENTER_CRITICAL(&gpio_context.gpio_spinlock);
gpio_context.gpio_isr_func = (gpio_isr_func_t *) calloc(GPIO_NUM_MAX, sizeof(gpio_isr_func_t));
gpio_context.gpio_isr_func = (gpio_isr_func_t *) heap_caps_calloc(GPIO_NUM_MAX, sizeof(gpio_isr_func_t), alloc_caps);
portEXIT_CRITICAL(&gpio_context.gpio_spinlock);
if (gpio_context.gpio_isr_func == NULL) {
ret = ESP_ERR_NO_MEM;