tree 408c25a52a6b4a9484f0277a72803f80f444adec
parent 847e0f9f2dd735726800100f521d2f69f8446c02
author Randy Dunlap <rdunlap@infradead.org> 1651519781 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1655218353 +0200

powerpc/4xx/cpm: Fix return value of __setup() handler

[ 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>