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[3/4] PM / Runtime: Convert pm_runtime_set_suspended() to return an int

Message ID 1476728221-26530-4-git-send-email-ulf.hansson@linaro.org
State Accepted
Commit b1a60995a684f2b6052cda640b0704361ab40089
Headers show

Commit Message

Ulf Hansson Oct. 17, 2016, 6:17 p.m. UTC
Because pm_runtime_set_suspended() invokes __pm_runtime_set_status(), which
can fail, pm_runtime_set_suspended() can also fail.

Instead of hiding a potential error, let's propagate it by converting
pm_runtime_set_suspended() from a void to return an int. In this way users
are able to check the error code and act accordingly.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

---
 include/linux/pm_runtime.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
1.9.1

Comments

Linus Walleij Oct. 21, 2016, 12:21 p.m. UTC | #1
On Mon, Oct 17, 2016 at 8:17 PM, Ulf Hansson <ulf.hansson@linaro.org> wrote:

> Because pm_runtime_set_suspended() invokes __pm_runtime_set_status(), which

> can fail, pm_runtime_set_suspended() can also fail.

>

> Instead of hiding a potential error, let's propagate it by converting

> pm_runtime_set_suspended() from a void to return an int. In this way users

> are able to check the error code and act accordingly.

>

> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>


Reviewed-by: Linus Walleij <linus.walleij@linaro.org>


Yours,
Linus Walleij
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diff mbox

Patch

diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 61ea566..4957fc1 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -258,9 +258,9 @@  static inline int pm_runtime_set_active(struct device *dev)
 	return __pm_runtime_set_status(dev, RPM_ACTIVE);
 }
 
-static inline void pm_runtime_set_suspended(struct device *dev)
+static inline int pm_runtime_set_suspended(struct device *dev)
 {
-	__pm_runtime_set_status(dev, RPM_SUSPENDED);
+	return __pm_runtime_set_status(dev, RPM_SUSPENDED);
 }
 
 static inline void pm_runtime_disable(struct device *dev)