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PM: hibernate: fix __setup handler error handling

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[ Upstream commit ba7ffcd4c4 ]

If an invalid value is used in "resumedelay=<seconds>", it is
silently ignored. Add a warning message and then let the __setup
handler return 1 to indicate that the kernel command line option
has been handled.

Fixes: 317cf7e5e8 ("PM / hibernate: convert simple_strtoul to kstrtoul")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Randy Dunlap 2022-02-28 14:05:32 -08:00 committed by Greg Kroah-Hartman
parent 0b5924a14d
commit 052a218db0
1 changed files with 1 additions and 1 deletions
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2
kernel/power/hibernate.c
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@ -1323,7 +1323,7 @@ static int __init resumedelay_setup(char *str)
int rc = kstrtouint(str, 0, &resume_delay);
if (rc)
return rc;
pr_warn("resumedelay: bad option string '%s'\n", str);
return 1;
}