Index: uspace/lib/c/include/io/logctl.h
===================================================================
--- uspace/lib/c/include/io/logctl.h	(revision 8e9b253438734085e2e5bb51464bb58685d0bd8f)
+++ uspace/lib/c/include/io/logctl.h	(revision 36df27ebb72758daf4d2179e70f231ac0e059a83)
@@ -36,7 +36,7 @@
 #include <io/log.h>
 
-extern int logctl_set_default_level(log_level_t);
-extern int logctl_set_log_level(const char *, log_level_t);
-extern int logctl_set_root(void);
+extern errno_t logctl_set_default_level(log_level_t);
+extern errno_t logctl_set_log_level(const char *, log_level_t);
+extern errno_t logctl_set_root(void);
 
 #endif