diff options
Diffstat (limited to 'drivers/staging/android/logger.c')
| -rw-r--r-- | drivers/staging/android/logger.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c index 6d92b7ef0a5..0d2367f2c15 100644 --- a/drivers/staging/android/logger.c +++ b/drivers/staging/android/logger.c @@ -330,6 +330,12 @@ static ssize_t do_write_log_from_user(struct logger_log *log, if (count != len) if (copy_from_user(log->buffer, buf + len, count - len)) + /* + * Note that by not updating w_off, this abandons the + * portion of the new entry that *was* successfully + * copied, just above. This is intentional to avoid + * message corruption from missing fragments. + */ return -EFAULT; log->w_off = logger_offset(log, log->w_off + count); |