1 files changed, 6 insertions, 2 deletions
diff --git a/src/modem.c b/src/modem.c
index e8bab71..f98079a 100644
--- a/src/modem.c
+++ b/src/modem.c
@@ -143,11 +143,15 @@ void modem_close(struct modem *m);
 struct modem *modem_open(const char *dev, const char*msn) {
     struct modem *m = NULL;
     char res_dev[PATH_MAX];
-
+    int r;
+    
     assert(dev);
 
-    if (device_lock(dev) != 0)
+    if ((r = device_lock(dev)) != 0) {
+        if (r > 0)
+            daemon_log(LOG_WARNING, "Device '%s' locked.", dev);
         goto fail;
+    }
 
     m = malloc(sizeof(struct modem));
     assert(m);