diff options
Diffstat (limited to 'drivers/firmware/efivars.c')
| -rw-r--r-- | drivers/firmware/efivars.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 7ad3aae6e085..bf7a6f994a3c 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -681,17 +681,35 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, *count = cnt; timespec->tv_sec = time; timespec->tv_nsec = 0; - get_var_data_locked(efivars, &efivars->walk_entry->var); - size = efivars->walk_entry->var.DataSize; - *buf = kmalloc(size, GFP_KERNEL); - if (*buf == NULL) - return -ENOMEM; - memcpy(*buf, efivars->walk_entry->var.Data, - size); - efivars->walk_entry = list_entry(efivars->walk_entry->list.next, - struct efivar_entry, list); - return size; + } else if (sscanf(name, "dump-type%u-%u-%lu", + type, &part, &time) == 3) { + /* + * Check if an old format, + * which doesn't support holding + * multiple logs, remains. + */ + *id = part; + *count = 0; + timespec->tv_sec = time; + timespec->tv_nsec = 0; + } else { + efivars->walk_entry = list_entry( + efivars->walk_entry->list.next, + struct efivar_entry, list); + continue; } + + get_var_data_locked(efivars, &efivars->walk_entry->var); + size = efivars->walk_entry->var.DataSize; + *buf = kmalloc(size, GFP_KERNEL); + if (*buf == NULL) + return -ENOMEM; + memcpy(*buf, efivars->walk_entry->var.Data, + size); + efivars->walk_entry = list_entry( + efivars->walk_entry->list.next, + struct efivar_entry, list); + return size; } efivars->walk_entry = list_entry(efivars->walk_entry->list.next, struct efivar_entry, list); |