kernel: driver core: fix potential null-ptr-deref in device_add()

A NULL pointer dereference was found in the driver core's deviceadd function. When dpmsysfsadd fails after busadddevice succeeds, the error path attempts to remove the driver binding that was never completed, causing a crash...

kernel: driver core: fix potential null-ptr-deref in device_add()

A NULL pointer dereference was found in the driver core's deviceadd function. When dpmsysfsadd fails after busadddevice succeeds, the error path attempts to remove the driver binding that was never completed, causing a crash...