diff options
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index a97dfb355e3e..954e6490f7a3 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -393,7 +393,14 @@ void google_chromeec_log_events(uint64_t mask) return; events = google_chromeec_get_events_b() & mask; - for (i = 0; i < sizeof(events) * 8; i++) { + + /* + * This loop starts at 1 because the EC_HOST_EVENT_MASK macro subtracts + * 1 from its argument before applying the left-shift operator. This + * prevents a left-shift of -1 happening, and covers the entire 64-bit + * range of the event mask. + */ + for (i = 1; i <= sizeof(events) * 8; i++) { if (EC_HOST_EVENT_MASK(i) & events) elog_add_event_byte(ELOG_TYPE_EC_EVENT, i); } |