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authorSaravana Kannan <saravanak@google.com>2021-01-10 09:54:07 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-21 20:12:40 +0100
commite020ff611ba9be54e959e6b548038f8a020da1c9 (patch)
treef6e0ab7384c3ab85a71ec5568fdace8135312a12 /usr
parent3d1cf435e201d1fd63e4346b141881aed086effd (diff)
driver core: Fix device link device name collision
The device link device's name was of the form: <supplier-dev-name>--<consumer-dev-name> This can cause name collision as reported here [1] as device names are not globally unique. Since device names have to be unique within the bus/class, add the bus/class name as a prefix to the device names used to construct the device link device name. So the devuce link device's name will be of the form: <supplier-bus-name>:<supplier-dev-name>--<consumer-bus-name>:<consumer-dev-name> [1] - https://lore.kernel.org/lkml/20201229033440.32142-1-michael@walle.cc/ Fixes: 287905e68dd2 ("driver core: Expose device link details in sysfs") Cc: stable@vger.kernel.org Reported-by: Michael Walle <michael@walle.cc> Tested-by: Michael Walle <michael@walle.cc> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210110175408.1465657-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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