Jussi Kivilinna 9169ff6a15 stm32_serial: fix freezing serial port. Serial interrupt enable/disable functions do not disable interrupts and can freeze device when serial interrupt is received while execution is at those functions. ...

Trivially triggered with two or more threads write to regular syslog stream and to emergency stream. In this case, freeze happens because of mismatch of priv->ie (TXEIE == 0) and actually enabled interrupts in USART registers (TXEIE == 1), which leads to unhandled TXE interrupt
and causes interrupt storm for USART.

2017-05-17 06:50:46 -06:00

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include

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src

stm32_serial: fix freezing serial port. Serial interrupt enable/disable functions do not disable interrupts and can freeze device when serial interrupt is received while execution is at those functions.

2017-05-17 06:50:46 -06:00

Kconfig

Kconfig: Rename CONFIG_ARM_TOOLCHAIN_IAR to CONFIG_ARCH_TOOLCHAIN_IAR

2017-05-13 16:01:38 -06:00