driver: serial: Error handling issues in uart_stm32_set_baudrate
This patch tests the return code when calling clock_control_get_rate and completes the issue #20503 seen on watchdog [Coverity CID :205655] Fixes #20503 Signed-off-by: Francois Ramu <francois.ramu@st.com>
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1 changed files with 8 additions and 3 deletions
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@ -24,6 +24,9 @@
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#include <clock_control/stm32_clock_control.h>
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#include "uart_stm32.h"
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#include <logging/log.h>
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LOG_MODULE_REGISTER(uart_stm32);
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/* convenience defines */
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#define DEV_CFG(dev) \
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((const struct uart_stm32_config * const)(dev)->config->config_info)
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@ -43,10 +46,12 @@ static inline void uart_stm32_set_baudrate(struct device *dev, u32_t baud_rate)
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u32_t clock_rate;
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/* Get clock rate */
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clock_control_get_rate(data->clock,
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if (clock_control_get_rate(data->clock,
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(clock_control_subsys_t *)&config->pclken,
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&clock_rate);
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&clock_rate) < 0) {
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LOG_ERR("Failed call clock_control_get_rate");
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return;
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}
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#ifdef CONFIG_LPUART_1
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