Return an error if the provided cache configuration is not large enough
to hold a single entry. An empty `active` and `idle` list causes NULL
dereferences in `log_cache_get`.
Signed-off-by: Jordan Yates <jordan@embeint.com>
Fix few mismatched CONTAINER_OF, few missing pointers to the first
element, one explicit casting.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
log_cache is capable of storing fixed length byte arrays
identified by a generic ID. If entry identified by given ID
is not found in cache, the least recently used entry is evicted
from cache.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
