smartcard: Initialize a pointer before use
A pointer to a PK11SlotInfo struct in watch_one_event_from_driver() could be used uninitialized after one of my commits (a1c2685b).
This commit initializes it. This has been found by Coverity Scan.
A pointer to a PK11SlotInfo struct in watch_one_event_from_driver() could be used uninitialized after one of my commits (a1c2685b).
This commit initializes it. This has been found by Coverity Scan.