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serial: ns16550: Fix return-type warning

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Fix compiler warning:

drivers/serial/ns16550.c: In function ‘serial_in_dynamic’:
drivers/serial/ns16550.c:153:1: warning: control reaches end
    of non-void function [-Wreturn-type]
  153 | }
      | ^

Observed with gcc 15.2.1:

$ riscv64-unknown-linux-gnu-gcc --version
riscv64-unknown-linux-gnu-gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1

Fixes: 62cbde4c4e46 ("serial: ns16550: Support run-time configuration")
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Nikita Shubin 2026-02-26 19:39:10 +03:00 committed by Tom Rini
parent 6a23c079b8
commit 660d8e4fe9
1 changed files with 2 additions and 2 deletions
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4
drivers/serial/ns16550.c
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@ -137,9 +137,9 @@ static int serial_in_dynamic(struct ns16550_plat *plat, u8 *addr)
}
} else if (plat->flags & NS16550_FLAG_BE) {
return readb(addr + (1 << plat->reg_shift) - 1);
} else {
return readb(addr);
}
return readb(addr);
}
#else
static inline void serial_out_dynamic(struct ns16550_plat *plat, u8 *addr,