>From 491f1dd9972093fddd0b7d27b62c76edcadde707 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen <[email protected]> Date: Thu, 9 Sep 2010 00:46:16 +0200 Subject: [PATCH 4/7] 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 <[email protected]> Acked-by: Kevin Hilman <[email protected]> Acked-by: Mark Brown <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> --- drivers/base/power/generic_ops.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 4b29d49..81f2c84 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; } -- 1.7.2.3 Claude BROUAT UMG/MIPE/WSIV System Integrator Office: +33 (0)1 72 21 04 54 mailto: mailto:[email protected] Intel Corp. SAS 134, av du Général Eisenhower BP 73586 31100 TOULOUSE France --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. NANTERRE Capital: 4,572,000 Euros This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. _______________________________________________ MeeGo-kernel mailing list [email protected] http://lists.meego.com/listinfo/meego-kernel
