mirror of
https://github.com/espressif/esp-idf.git
synced 2026-09-22 13:01:16 +03:00
fix(i2c): release platform mutex on intr/pm_lock delete failure
ESP_RETURN_ON_ERROR inside the s_i2c_platform.mutex critical section returns without releasing the mutex, permanently blocking all I2C bus operations. Replace with ESP_GOTO_ON_ERROR that jumps to a cleanup label releasing the mutex before return.
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@@ -190,15 +190,24 @@ esp_err_t i2c_acquire_bus_handle(i2c_port_num_t port_num, i2c_bus_handle_t *i2c_
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esp_err_t i2c_release_bus_handle(i2c_bus_handle_t i2c_bus)
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esp_err_t i2c_release_bus_handle(i2c_bus_handle_t i2c_bus)
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{
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{
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esp_err_t ret = ESP_OK;
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int port_num = i2c_bus->port_num;
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int port_num = i2c_bus->port_num;
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i2c_clock_source_t clk_src = i2c_bus->clk_src;
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i2c_clock_source_t clk_src = i2c_bus->clk_src;
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bool do_deinitialize = false;
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bool do_deinitialize = false;
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_lock_acquire(&s_i2c_platform.mutex);
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_lock_acquire(&s_i2c_platform.mutex);
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if (s_i2c_platform.buses[port_num]) {
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if (s_i2c_platform.buses[port_num]) {
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s_i2c_platform.count[port_num]--;
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if (s_i2c_platform.count[port_num] > 1) {
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if (s_i2c_platform.count[port_num] == 0) {
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s_i2c_platform.count[port_num]--;
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} else {
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do_deinitialize = true;
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do_deinitialize = true;
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s_i2c_platform.buses[port_num] = NULL;
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if (i2c_bus->intr_handle) {
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ESP_GOTO_ON_ERROR(esp_intr_free(i2c_bus->intr_handle), err, TAG, "delete interrupt service failed");
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i2c_bus->intr_handle = NULL;
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}
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if (i2c_bus->pm_lock) {
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esp_pm_lock_delete(i2c_bus->pm_lock);
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i2c_bus->pm_lock = NULL;
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}
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#if I2C_USE_RETENTION_LINK
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#if I2C_USE_RETENTION_LINK
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if (i2c_bus->is_lp_i2c == false) {
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if (i2c_bus->is_lp_i2c == false) {
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if (i2c_bus->retention_link_created) {
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if (i2c_bus->retention_link_created) {
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@@ -207,12 +216,8 @@ esp_err_t i2c_release_bus_handle(i2c_bus_handle_t i2c_bus)
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sleep_retention_module_deinit(i2c_regs_retention[port_num].module_id);
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sleep_retention_module_deinit(i2c_regs_retention[port_num].module_id);
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}
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}
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#endif
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#endif
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if (i2c_bus->intr_handle) {
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s_i2c_platform.count[port_num] = 0;
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ESP_RETURN_ON_ERROR(esp_intr_free(i2c_bus->intr_handle), TAG, "delete interrupt service failed");
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s_i2c_platform.buses[port_num] = NULL;
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}
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if (i2c_bus->pm_lock) {
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ESP_RETURN_ON_ERROR(esp_pm_lock_delete(i2c_bus->pm_lock), TAG, "delete pm_lock failed");
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}
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// Disable I2C module
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// Disable I2C module
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if (!i2c_bus->is_lp_i2c) {
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if (!i2c_bus->is_lp_i2c) {
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I2C_RCC_ATOMIC() {
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I2C_RCC_ATOMIC() {
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@@ -244,9 +249,11 @@ esp_err_t i2c_release_bus_handle(i2c_bus_handle_t i2c_bus)
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if (do_deinitialize) {
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if (do_deinitialize) {
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ESP_LOGD(TAG, "delete bus %d", port_num);
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ESP_LOGD(TAG, "delete bus %d", port_num);
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}
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}
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ESP_RETURN_ON_FALSE(s_i2c_platform.count[port_num] == 0, ESP_ERR_INVALID_STATE, TAG, "Bus not freed entirely");
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return ESP_OK;
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return ESP_OK;
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err:
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_lock_release(&s_i2c_platform.mutex);
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return ret;
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}
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}
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esp_err_t i2c_select_periph_clock(i2c_bus_handle_t handle, soc_module_clk_t clk_src)
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esp_err_t i2c_select_periph_clock(i2c_bus_handle_t handle, soc_module_clk_t clk_src)
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@@ -863,11 +863,12 @@ static esp_err_t i2c_master_bus_destroy(i2c_master_bus_handle_t bus_handle)
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}
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}
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bus_handle = NULL;
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bus_handle = NULL;
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}
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}
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free(i2c_master);
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} else {
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} else {
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free(i2c_master);
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// Non-OK here means interrupt teardown did not complete, so the ISR
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// may still reference i2c_slave and its wrapper-owned resources.
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return err;
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}
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}
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free(i2c_master);
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return ESP_OK;
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return ESP_OK;
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}
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}
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@@ -212,6 +212,11 @@ static esp_err_t i2c_slave_device_destroy(i2c_slave_dev_handle_t i2c_slave)
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i2c_ll_disable_intr_mask(i2c_slave->base->hal.dev, I2C_LL_SLAVE_EVENT_INTR);
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i2c_ll_disable_intr_mask(i2c_slave->base->hal.dev, I2C_LL_SLAVE_EVENT_INTR);
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i2c_common_deinit_pins(i2c_slave->base);
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i2c_common_deinit_pins(i2c_slave->base);
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ret = i2c_release_bus_handle(i2c_slave->base);
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ret = i2c_release_bus_handle(i2c_slave->base);
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if (ret != ESP_OK) {
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// Non-OK here means interrupt teardown did not complete, so the ISR
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// may still reference i2c_slave and its wrapper-owned resources.
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return ret;
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}
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}
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}
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if (i2c_slave->rx_ring_buf) {
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if (i2c_slave->rx_ring_buf) {
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vRingbufferDeleteWithCaps(i2c_slave->rx_ring_buf);
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vRingbufferDeleteWithCaps(i2c_slave->rx_ring_buf);
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