1 files changed, 6 insertions, 3 deletions

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b29dacf900f9..e6e1cbe863f5 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1781,10 +1781,13 @@ static ssize_t pktgen_thread_write(struct file *file,
                         return -EFAULT;
                 i += len;
                 mutex_lock(&pktgen_thread_lock);
-                pktgen_add_device(t, f);
+                ret = pktgen_add_device(t, f);
                 mutex_unlock(&pktgen_thread_lock);
-                ret = count;
-                sprintf(pg_result, "OK: add_device=%s", f);
+                if (!ret) {
+                        ret = count;
+                        sprintf(pg_result, "OK: add_device=%s", f);
+                } else
+                        sprintf(pg_result, "ERROR: can not add device %s", f);
                 goto out;
         }