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

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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 16:04:09 +02:00 committed by Carles Cufí
parent 59fc838532
commit 9c626a07d4
1 changed files with 5 additions and 0 deletions
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5
drivers/memc/memc_stm32.c
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@ -44,6 +44,11 @@ static int memc_stm32_init(const struct device *dev)
/* enable FMC peripheral clock */
clk = DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE);
if (!device_is_ready(clk)) {
LOG_ERR("clock control device not ready");
return -ENODEV;
}
r = clock_control_on(clk, (clock_control_subsys_t *)&config->pclken);
if (r < 0) {
LOG_ERR("Could not initialize FMC clock (%d)", r);