user/sven/linux.git/drivers/devfreq/devfreq.c, branch v4.4.271

PM / devfreq: Don't fail devfreq_dev_release if not in list

2020-01-12T10:22:37Z

[ Upstream commit 42a6b25e67df6ee6675e8d1eaf18065bd73328ba ] Right now devfreq_dev_release will print a warning and abort the rest of the cleanup if the devfreq instance is not part of the global devfreq_list. But this is a valid scenario, for example it can happen if the governor can't be found or on any other init error that happens after device_register. Initialize devfreq->node to an empty list head in devfreq_add_device so that list_del becomes a safe noop inside devfreq_dev_release and we can continue the rest of the cleanup. Signed-off-by: Leonard Crestez Reviewed-by: Matthias Kaehlcke Reviewed-by: Chanwoo Choi Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin

PM / devfreq: Propagate error from devfreq_add_device()

2018-02-22T14:44:58Z

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 Signed-off-by: Bjorn Andersson Signed-off-by: MyungJoo Ham Signed-off-by: Greg Kroah-Hartman

PM / devfreq: fix double kfree

2015-10-02T02:05:58Z

When device_register() fails, kfree(devfreq) is called already in devfreq_dev_release(), hence there is no need to call kfree(devfreq) in err_dev again. Signed-off-by: Geliang Tang Signed-off-by: MyungJoo Ham

PM / devfreq: Fix governor_store()

2015-09-30T05:16:31Z

Writing the currently set governor into sysfs currently seems to fail. Fix this by setting the return code to zero before leaving governor_store(). Signed-off-by: Tobias Jakobi Signed-off-by: MyungJoo Ham

PM / devfreq: Fix incorrect type issue.

2015-09-11T05:23:30Z

time_in_state in struct devfreq is defined as unsigned long, so devm_kzalloc should use sizeof(unsigned long) as argument instead of sizeof(unsigned int), otherwise it will cause unexpected result in 64bit system. Signed-off-by: Xiaolong Ye Signed-off-by: Kevin Liu Signed-off-by: MyungJoo Ham

PM / devfreq: drop comment about thermal setting max_freq

2015-09-11T05:23:29Z

The thermal infrastructure should use the devfreq cooling device, which uses the OPP library to disable OPPs as necessary. Fix a couple of typos in the same comment while we are at it. Signed-off-by: Javi Merino Signed-off-by: MyungJoo Ham

PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL)

2015-09-11T05:23:21Z

IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Signed-off-by: Viresh Kumar Signed-off-by: MyungJoo Ham

PM / devfreq: correct misleading comment

2015-03-30T08:09:41Z

_remove_devfreq() does not have @skip anymore after 3.16. The comment for _remove_devfreq() has been updated correspondingly. Signed-off-by: MyungJoo Ham

PM / devfreq: Export helper functions for drivers

2014-09-29T11:22:22Z

These functions are indended for use by drivers and should be available also when the driver is built as a module. Cc: MyungJoo Ham Cc: Kyungmin Park Signed-off-by: Ãrjan Eide Signed-off-by: MyungJoo Ham

PM / devfreq: Add devm_devfreq_{register,unregister}_opp_notfier function

2014-05-24T13:33:41Z

This patch add resource-managed function for devfreq opp as following functions. The devm_devfreq_register_opp_notifier() manages automatically the registration of devfreq opp using device resource management. - devm_devfreq_register_opp_notifier - devm_devfreq_unregister_opp_notifier() Signed-off-by: Chanwoo Choi Signed-off-by: MyungJoo Ham