adaptived: effects: Fix coverity warning in cgroup_setting_psi_init()

Fix uninitialized pointer read Coverity warning in
cgroup_setting_psi_init():

	Incorrect values could be read from, or even written to, an
	arbitrary memory location, causing incorrect computations.

	In cgroup_setting_psi_init: Reads an uninitialized pointer or
	its target (CWE-457)

Signed-off-by: Tom Hromatka <[email protected]>

Author: drakenclimber

adaptived/src/effects/cgroup_setting_by_psi.c

@@ -72,6 +72,7 @@ int cgroup_setting_psi_init(struct adaptived_effect * const eff, struct json_obj
 		goto error;
 	}
 	opts->cgroup_path = NULL;
+	opts->cgroup_setting = NULL;
 	opts->value.type = ADAPTIVED_CGVAL_CNT;
 	opts->limit.type = ADAPTIVED_CGVAL_CNT;
 	opts->limit_provided = false;