scst_local: Correct error handling in scst_local_sysfs_mgmt_cmd()

Avoid that __scst_local_add_adapter() failures are ignored.
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6342 d57e44dd-8a1f-0410-8b47-8ef2f437770f

scst_local/scst_local.c

@@ -733,7 +733,7 @@ out_up:
 
 static ssize_t scst_local_sysfs_mgmt_cmd(char *buf)
 {
-	ssize_t res;
+	ssize_t res = 0;
 	char *command, *target_name, *session_name;
 	struct scst_local_tgt *t, *tgt;
 
@@ -793,8 +793,6 @@ static ssize_t scst_local_sysfs_mgmt_cmd(char *buf)
 		scst_local_close_session_impl(sess, false);
 	}
 
-	res = 0;
-
 out_unlock:
 	mutex_unlock(&scst_local_mutex);