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driver core: Remove the link if there is no driver with AUTO flag 

DL_FLAG_AUTOREMOVE_CONSUMER/SUPPLIER means "Remove the link
automatically on consumer/supplier driver unbind", that means we should
remove whole the device_link when there is no this driver no matter what
the ref_count of the link is.

CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yong Wu 2019-01-01 12:51:05 +08:00 committed by Greg Kroah-Hartman
parent 8a4b326911
commit 0fe6f7874d
1 changed files with 2 additions and 2 deletions
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4
drivers/base/core.c
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@ -512,7 +512,7 @@ static void __device_links_no_driver(struct device *dev)
continue;
if (link->flags & DL_FLAG_AUTOREMOVE_CONSUMER)
kref_put(&link->kref, __device_link_del);
__device_link_del(&link->kref);
else if (link->status != DL_STATE_SUPPLIER_UNBIND)
WRITE_ONCE(link->status, DL_STATE_AVAILABLE);
}
@ -557,7 +557,7 @@ void device_links_driver_cleanup(struct device *dev)
*/
if (link->status == DL_STATE_SUPPLIER_UNBIND &&
link->flags & DL_FLAG_AUTOREMOVE_SUPPLIER)
kref_put(&link->kref, __device_link_del);
__device_link_del(&link->kref);
WRITE_ONCE(link->status, DL_STATE_DORMANT);
}