From 064b021fbe470ecc9ca10f9f87af48c0fc0865fb Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Thu, 19 Jul 2012 10:38:06 +0200 Subject: [PATCH] PM / Sleep: call early resume handlers when suspend_noirq fails Commit cf579dfb82550e34de7ccf3ef090d8b834ccd3a9 (PM / Sleep: Introduce "late suspend" and "early resume" of devices) introduced a bug where suspend_late handlers would be called, but if dpm_suspend_noirq returned an error the early_resume handlers would never be called. All devices would end up on the dpm_late_early_list, and would never be resumed again. Fix it by calling dpm_resume_early when dpm_suspend_noirq returns an error. Signed-off-by: Colin Cross Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/base/power/main.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index dbc3dbe..c642f8d 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -989,8 +989,16 @@ static int dpm_suspend_late(pm_message_t state) int dpm_suspend_end(pm_message_t state) { int error = dpm_suspend_late(state); + if (error) + return error; - return error ? : dpm_suspend_noirq(state); + error = dpm_suspend_noirq(state); + if (error) { + dpm_resume_early(state); + return error; + } + + return 0; } EXPORT_SYMBOL_GPL(dpm_suspend_end); -- 2.7.4