tree e11ee7842b6e07a14bae00c03d042263d27b6e98
parent 709da278cac44922c46bb57ee1a6b2555b5d6779
author Daniel Willmann <dwillmann@sysmocom.de> 1660744839 +0200
committer neels <nhofmeyr@sysmocom.de> 1660832008 +0000

use_count: Return if uc is NULL

The documentation for osmo_use_count_get_put states the return value is
"Negative on range violations or USE_LIST == NULL, the use_cb()'s
return value, or 0 on success"

However, the code in _osmo_use_count_get_put doesn't check if uc is NULL
- instead it would crash in osmo_use_count_find() where it is dereferenced.
Add a check for uc and return -EINVAL if it is NULL.

Change-Id: I792563696860a3100e95cafdd5fe57511819ef56
Related: SYS#5895