linux-kernel - [PATCH v1 1/6] mips: Return proper error code from console ->setup() hook

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Date:   Thu, 18 Jun 2020 19:47:46 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: [PATCH v1 1/6] mips: Return proper error code from console ->setup() hook

For unifying console ->setup() handling, which is pure documented,
return error code, rather than non-zero arbitrary number.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
---
 arch/mips/fw/arc/arc_con.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/mips/fw/arc/arc_con.c b/arch/mips/fw/arc/arc_con.c
index 365e3913231e..7fdce236b298 100644
--- a/arch/mips/fw/arc/arc_con.c
+++ b/arch/mips/fw/arc/arc_con.c
@@ -28,7 +28,9 @@ static void prom_console_write(struct console *co, const char *s,
 
 static int prom_console_setup(struct console *co, char *options)
 {
-	return !(prom_flags & PROM_FLAG_USE_AS_CONSOLE);
+	if (prom_flags & PROM_FLAG_USE_AS_CONSOLE)
+		return 0;
+	return -ENODEV;
 }
 
 static struct console arc_cons = {
-- 
2.27.0