From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit 7a64ca17e4dd50d5f910769167f3553902777844 ]
If an invalid option is given for "test_suspend=<option>", the entire string is added to init's environment, so return 1 instead of 0 from the __setup handler.
Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc5 test_suspend=invalid"
and
Run /sbin/init as init process with arguments: /sbin/init with environment: HOME=/ TERM=linux BOOT_IMAGE=/boot/bzImage-517rc5 test_suspend=invalid
Fixes: 2ce986892faf ("PM / sleep: Enhance test_suspend option with repeat capability") Fixes: 27ddcc6596e5 ("PM / sleep: Add state field to pm_states[] entries") Fixes: a9d7052363a6 ("PM: Separate suspend to RAM functionality from core") 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 --- kernel/power/suspend_test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/power/suspend_test.c b/kernel/power/suspend_test.c index e1ed58adb69e..be480ae5cb2a 100644 --- a/kernel/power/suspend_test.c +++ b/kernel/power/suspend_test.c @@ -157,22 +157,22 @@ static int __init setup_test_suspend(char *value) value++; suspend_type = strsep(&value, ","); if (!suspend_type) - return 0; + return 1;
repeat = strsep(&value, ","); if (repeat) { if (kstrtou32(repeat, 0, &test_repeat_count_max)) - return 0; + return 1; }
for (i = PM_SUSPEND_MIN; i < PM_SUSPEND_MAX; i++) if (!strcmp(pm_labels[i], suspend_type)) { test_state_label = pm_labels[i]; - return 0; + return 1; }
printk(warn_bad_state, suspend_type); - return 0; + return 1; } __setup("test_suspend", setup_test_suspend);