driver core: Read atomic counter once in driver_probe_done()

Between printing the debug message and actual check atomic counter can be
altered. For better debugging experience read atomic counter value only once.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Link: https://lore.kernel.org/r/20200324122023.9649-2-andriy.shevchenko@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>