Patch "PM / devfreq: Propagate error from devfreq_add_device()" has been added to the 4.9-stable tree

Patch "PM / devfreq: Propagate error from devfreq_add_device()" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    PM / devfreq: Propagate error from devfreq_add_device()

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pm-devfreq-propagate-error-from-devfreq_add_device.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From d1bf2d30728f310f72296b54f0651ecdb09cbb12 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Sun, 5 Nov 2017 21:27:41 -0800
Subject: PM / devfreq: Propagate error from devfreq_add_device()

From: Bjorn Andersson <bjorn.andersson@linaro.org>

commit d1bf2d30728f310f72296b54f0651ecdb09cbb12 upstream.

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/devfreq/devfreq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -684,7 +684,7 @@ struct devfreq *devm_devfreq_add_device(
 	devfreq = devfreq_add_device(dev, profile, governor_name, data);
 	if (IS_ERR(devfreq)) {
 		devres_free(ptr);
-		return ERR_PTR(-ENOMEM);
+		return devfreq;
 	}
 
 	*ptr = devfreq;


Patches currently in stable-queue which might be from bjorn.andersson@linaro.org are

queue-4.9/pm-devfreq-propagate-error-from-devfreq_add_device.patch
queue-4.9/arm64-dts-msm8916-correct-ipc-references-for-smsm.patch