From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit 5bb99fd4090fe1acfdb90a97993fcda7f8f5a3d6 ]
__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 cpm_powersave_off().
Fixes: d164f6d4f910 ("powerpc/4xx: Add suspend and idle support") Reported-by: Igor Zhbanov izh1979@gmail.com Signed-off-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220502192941.20955-1-rdunlap@infradead.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/sysdev/ppc4xx_cpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/sysdev/ppc4xx_cpm.c b/arch/powerpc/sysdev/ppc4xx_cpm.c index ba95adf81d8d..05047cf32dbb 100644 --- a/arch/powerpc/sysdev/ppc4xx_cpm.c +++ b/arch/powerpc/sysdev/ppc4xx_cpm.c @@ -341,6 +341,6 @@ late_initcall(cpm_init); static int __init cpm_powersave_off(char *arg) { cpm.powersave_off = 1; - return 0; + return 1; } __setup("powersave=off", cpm_powersave_off);