From 67f2fb636355283a91121a6661ee7a112ab25061 Mon Sep 17 00:00:00 2001
From: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Date: Fri, 13 Apr 2018 07:43:38 +0900
Subject: [PATCH] app: Fix scan-build errors due to optarg handling

Change-Id: Ia952f0a962ee63d25ac5297498bffb7e70e5204b
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/407029
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
---
 lib/event/app.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/event/app.c b/lib/event/app.c
index 635c35bdf..4c619f4f6 100644
--- a/lib/event/app.c
+++ b/lib/event/app.c
@@ -597,15 +597,27 @@ spdk_app_parse_args(int argc, char **argv, struct spdk_app_opts *opts,
 			rval = SPDK_APP_PARSE_ARGS_HELP;
 			goto parse_done;
 		case 'i':
+			if (optarg == NULL) {
+				rval = SPDK_APP_PARSE_ARGS_FAIL;
+				goto parse_done;
+			}
 			opts->shm_id = atoi(optarg);
 			break;
 		case 'm':
 			opts->reactor_mask = optarg;
 			break;
 		case 'n':
+			if (optarg == NULL) {
+				rval = SPDK_APP_PARSE_ARGS_FAIL;
+				goto parse_done;
+			}
 			opts->mem_channel = atoi(optarg);
 			break;
 		case 'p':
+			if (optarg == NULL) {
+				rval = SPDK_APP_PARSE_ARGS_FAIL;
+				goto parse_done;
+			}
 			opts->master_core = atoi(optarg);
 			break;
 		case 'q':