[patch] serial: stm32: fix a type issue
From: Dan Carpenter <hidden>
Date: 2016-10-12 06:21:03
Also in:
kernel-janitors, linux-serial
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
We store UNDEF_REG in a u8. It causes a problem in functions like
stm32_tx_dma_complete() where we check "if (ofs->icr == UNDEF_REG)".
Fixes: 3489187204eb ('serial: stm32: adding dma support')
Signed-off-by: Dan Carpenter <redacted>
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index 41d9749..f9887cc 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h@@ -31,7 +31,7 @@ struct stm32_usart_info { struct stm32_usart_config cfg; }; -#define UNDEF_REG ~0 +#define UNDEF_REG 0xFF /* Register offsets */ struct stm32_usart_info stm32f4_info = {