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Date:   Thu, 14 Apr 2022 15:12:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Ben Dooks <ben-linux@...ff.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, patches@...linux.org.uk,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 259/338] ARM: 9187/1: JIVE: fix return value of __setup handler

From: Randy Dunlap <rdunlap@...radead.org>

[ Upstream commit 8b2360c7157b462c4870d447d1e65d30ef31f9aa ]

__setup() handlers should return 1 to obsolete_checksetup() in
init/main.c to indicate that the boot option has been handled.
A return of 0 causes the boot option/value to be listed as an Unknown
kernel parameter and added to init's (limited) argument or environment
strings. Also, error return codes don't mean anything to
obsolete_checksetup() -- only non-zero (usually 1) or zero.
So return 1 from jive_mtdset().

Fixes: 9db829f485c5 ("[ARM] JIVE: Initial machine support for Logitech Jive")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Ben Dooks <ben-linux@...ff.org>
Cc: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Alim Akhtar <alim.akhtar@...sung.com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-samsung-soc@...r.kernel.org
Cc: patches@...linux.org.uk
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/mach-s3c24xx/mach-jive.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 885e8f12e4b9..eedc9f8ed210 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -237,11 +237,11 @@ static int __init jive_mtdset(char *options)
 	unsigned long set;
 
 	if (options == NULL || options[0] == '\0')
-		return 0;
+		return 1;
 
 	if (kstrtoul(options, 10, &set)) {
 		printk(KERN_ERR "failed to parse mtdset=%s\n", options);
-		return 0;
+		return 1;
 	}
 
 	switch (set) {
@@ -256,7 +256,7 @@ static int __init jive_mtdset(char *options)
 		       "using default.", set);
 	}
 
-	return 0;
+	return 1;
 }
 
 /* parse the mtdset= option given to the kernel command line */
-- 
2.35.1



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