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Diffstat (limited to 'drivers/thunderbolt/eeprom.c')
| -rw-r--r-- | drivers/thunderbolt/eeprom.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c index 6392990c984d..e4e64b130514 100644 --- a/drivers/thunderbolt/eeprom.c +++ b/drivers/thunderbolt/eeprom.c @@ -276,6 +276,9 @@ int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid) if (res) return res; + if (drom_offset == 0) + return -ENODEV; + /* read uid */ res = tb_eeprom_read_n(sw, drom_offset, data, 9); if (res) |