firmware: vpd: Fix platform driver and device registration/unregistration
The driver exit function needs to unregister both platform device and driver. Also, during registration, register driver first and perform error checks. Fixes: 049a59db ("firmware: Google VPD sysfs driver") Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable <stable@vger.kernel.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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