driver core: Remove the link if there is no driver with AUTO flag (0fe6f787) · Commits · 戴 / test

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>

drivers/base/core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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);
		}

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