USB: trancevibrator: convert to use dev_groups
Greg Kroah-Hartman authored
USB drivers now support the ability for the driver core to handle the
creation and removal of device-specific sysfs files in a race-free
manner.  Take advantage of that by converting the driver to use this by
moving the sysfs attributes into a group and assigning the dev_groups
pointer to it.

Cc: Ding Xiang <dingxiang@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20190806144502.17792-11-gregkh@linuxfoundation.org

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
f9bbcbef
Linux kernel
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