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[added,to,the,4.1,stable,tree] PM / devfreq: Propagate error from devfreq_add_device()

Message ID 20180301152116.1486-359-alexander.levin@microsoft.com
State New
Headers show
Series [added,to,the,4.1,stable,tree] PM / devfreq: Propagate error from devfreq_add_device() | expand

Commit Message

Sasha Levin March 1, 2018, 3:26 p.m. UTC 
From: Bjorn Andersson <bjorn.andersson@linaro.org>


This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.

-- 
2.14.1
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Patch

===============

[ Upstream commit d1bf2d30728f310f72296b54f0651ecdb09cbb12 ]

Propagate the error of devfreq_add_device() in devm_devfreq_add_device()
rather than statically returning ENOMEM. This makes it slightly faster
to pinpoint the cause of a returned error.

Fixes: 8cd84092d35e ("PM / devfreq: Add resource-managed function for devfreq device")
Cc: stable@vger.kernel.org
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/devfreq/devfreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index ca1b362d77e2..3373561caae8 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -584,7 +584,7 @@  struct devfreq *devm_devfreq_add_device(struct device *dev,
 	devfreq = devfreq_add_device(dev, profile, governor_name, data);
 	if (IS_ERR(devfreq)) {
 		devres_free(ptr);
-		return ERR_PTR(-ENOMEM);
+		return devfreq;
 	}
 
 	*ptr = devfreq;