michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: serial: check if clock device is ready before accessing

Browse source 
Add check for device_is_ready() before accessing clock control devices.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-08-08 16:05:16 +02:00 • committed by Carles Cufí
commit 9456eca5c0
13 changed files with 52 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/serial/uart_stm32.c
View file

@ -1563,6 +1563,12 @@ static int uart_stm32_init(const struct device *dev)
int err;
__uart_stm32_get_clock(dev);
if (!device_is_ready(data->clock)) {
LOG_ERR("clock control device not ready");
return -ENODEV;
}
/* enable clock */
err = clock_control_on(data->clock, (clock_control_subsys_t)&config->pclken[0]);
if (err != 0) {