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workqueue: use put_device() instead of kfree()

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[ Upstream commit 537f4146c5 ]

Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized in this function instead.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arvind Yadav 2018-03-06 15:35:43 +05:30 committed by Greg Kroah-Hartman
parent b646b8e5da
commit b29cfb8ae0
1 changed files with 1 additions and 1 deletions
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2
kernel/workqueue.c
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@ -5199,7 +5199,7 @@ int workqueue_sysfs_register(struct workqueue_struct *wq)
ret = device_register(&wq_dev->dev);
if (ret) {
kfree(wq_dev);
put_device(&wq_dev->dev);
wq->wq_dev = NULL;
return ret;
}