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[Fix] <components>:finsh/shell.c F: char rt_hw_console_getchar(void) (#10345)

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[Fix] <components>:finsh/shell.c
When using char rt_hw_console_getchar(void),
some compilers may default to returning 255 instead of the expected -1,
causing the condition if(ch < 0) at F: shell.c L:519 to fail and enter an erroneous loop.

Solution: Use the signed char type return value as rt_hw_console_getchar

Signed-off-by: Yucai Liu <1486344514@qq.com>
This commit is contained in:
ricky
2025-07-20 17:35:35 +08:00
committed by GitHub
parent ece19e961a
commit 9c5aeb75e2
1 changed files with 1 additions and 1 deletions
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components/finsh/shell.c
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@@ -193,7 +193,7 @@ int finsh_getchar(void)
return ch;
#endif /* RT_USING_POSIX_STDIO */
#else
extern char rt_hw_console_getchar(void);
extern signed char rt_hw_console_getchar(void);
return rt_hw_console_getchar();
#endif /* RT_USING_DEVICE */
}