From 42b16c051c3f462095fb8c9bad1bc05b34518cb9 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 31 May 2005 17:08:49 +1000 Subject: [PATCH] Driver core: Don't "lose" devices on suspend on failure I think we need this patch or we might "lose" devices to the dpm_irq_off list if a failure occurs during the suspend process. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/suspend.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/base/power/suspend.c') diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 807e13fb205b..2ccee3763acf 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -114,8 +114,19 @@ int device_suspend(pm_message_t state) put_device(dev); } up(&dpm_list_sem); - if (error) + if (error) { + /* we failed... before resuming, bring back devices from + * dpm_off_irq list back to main dpm_off list, we do want + * to call resume() on them, in case they partially suspended + * despite returning -EAGAIN + */ + while (!list_empty(&dpm_off_irq)) { + struct list_head * entry = dpm_off_irq.next; + list_del(entry); + list_add(entry, &dpm_off); + } dpm_resume(); + } up(&dpm_sem); return error; } -- cgit v1.2.3