From 05aa55dddb9ee4045c320661068bea78dad6a6e5 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen <ohad@wizery.com> Date: Thu, 9 Sep 2010 00:46:16 +0200 Subject: [PATCH] PM / Runtime: Lenient generic runtime pm callbacks Allow drivers, that belong to subsystems which use the generic runtime pm callbacks, not to define runtime pm suspend/resume handlers, by implicitly assuming success in such cases. This is needed to eliminate nop handlers that would otherwise be necessary by drivers which enable runtime pm, but don't need to do anything when their devices are runtime-suspended/resumed. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- drivers/base/power/generic_ops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 4b29d4981253a..81f2c84697f45 100644 --- a/drivers/base/power/generic_ops.c +++ b/drivers/base/power/generic_ops.c @@ -46,7 +46,7 @@ int pm_generic_runtime_suspend(struct device *dev) const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; int ret; - ret = pm && pm->runtime_suspend ? pm->runtime_suspend(dev) : -EINVAL; + ret = pm && pm->runtime_suspend ? pm->runtime_suspend(dev) : 0; return ret; } @@ -65,7 +65,7 @@ int pm_generic_runtime_resume(struct device *dev) const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; int ret; - ret = pm && pm->runtime_resume ? pm->runtime_resume(dev) : -EINVAL; + ret = pm && pm->runtime_resume ? pm->runtime_resume(dev) : 0; return ret; } -- GitLab