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| author | Colin Cross <ccross@android.com> | 2011-07-11 10:51:49 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-07-11 10:51:49 +0200 |
| commit | 887596224cca4dc4669c53e4d7a33fcfc9d9e823 (patch) | |
| tree | 51cf1ce6f98ddf3e304c06b45c28265dfc9e4503 | |
| parent | Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | linux-887596224cca4dc4669c53e4d7a33fcfc9d9e823.tar.xz linux-887596224cca4dc4669c53e4d7a33fcfc9d9e823.zip | |
PM: Reintroduce dropped call to check_wakeup_irqs
Patch 2e711c04dbbf7a7732a3f7073b1fc285d12b369d
(PM: Remove sysdev suspend, resume and shutdown operations)
deleted sysdev_suspend(), which was being relied on to call
check_wakeup_irqs() in suspend. If check_wakeup_irqs() is not
called, wake interrupts that are pending when suspend is
entered may be lost. It also breaks IRQCHIP_MASK_ON_SUSPEND,
which is handled in check_wakeup_irqs().
This patch adds a call to check_wakeup_irqs() in syscore_suspend(),
similar to what was deleted in sysdev_suspend().
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| -rw-r--r-- | drivers/base/syscore.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c index c126db3cb7d1..e8d11b6630ee 100644 --- a/drivers/base/syscore.c +++ b/drivers/base/syscore.c @@ -9,6 +9,7 @@ #include <linux/syscore_ops.h> #include <linux/mutex.h> #include <linux/module.h> +#include <linux/interrupt.h> static LIST_HEAD(syscore_ops_list); static DEFINE_MUTEX(syscore_ops_lock); @@ -48,6 +49,13 @@ int syscore_suspend(void) struct syscore_ops *ops; int ret = 0; + pr_debug("Checking wakeup interrupts\n"); + + /* Return error code if there are any wakeup interrupts pending. */ + ret = check_wakeup_irqs(); + if (ret) + return ret; + WARN_ONCE(!irqs_disabled(), "Interrupts enabled before system core suspend.\n"); |