drivers: gpio: pcal64xxa: give semaphore in case of error

In function pcal64xxa_process_input, lock was not released in case of error when calling inputs_read. This was causing an infinite wait in the following calls of functions using I2C bus. Signed-off-by: Vincent Geneves <[email protected]>
zephyrproject-rtos · Feb 12, 2024 · 6806964 · 6806964
1 parent b15452b
commit 6806964
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/gpio/gpio_pcal64xxa.c b/drivers/gpio/gpio_pcal64xxa.c
@@ -192,7 +192,8 @@ static int pcal64xxa_process_input(const struct device *dev, gpio_port_value_t *
 
 	if (rc != 0) {
 		LOG_ERR("failed to read inputs from device %s", dev->name);
-		return rc;
+		k_sem_give(&drv_data->lock);
+		return rc
 	}
 
 	if (value) {