Chevck first for NULL before writing anything to the alloceted structure

[fw/stlink] / flash / main.c

diff --git a/flash/main.c b/flash/main.c
index 5637489236c7785c806efbebbcc9e2f9e90bda6d..9033b17b6069828817cad513a70516108b17a804 100644 (file)
--- a/flash/main.c
+++ b/flash/main.c
@@ -48,8 +48,8 @@ static int get_opts(struct opts* o, int ac, char** av)
       o->devname = av[1];
       i = 1;
     }
-
-    o->size = strtoul(av[i + 3], NULL, 16);
+    if (ac > 3)
+       o->size = strtoul(av[i + 3], NULL, 16);
   }
   else if (strcmp(av[0], "write") == 0)
   {
@@ -80,6 +80,7 @@ int main(int ac, char** av)
   struct opts o;
   int err = -1;
 
+  o.size = 0;
   if (get_opts(&o, ac - 1, av + 1) == -1)
   {
     printf("invalid command line\n");
@@ -89,13 +90,15 @@ int main(int ac, char** av)
 
   if (o.devname != NULL) /* stlinkv1 */
   {
-    sl = stlink_v1_open(100);
+    sl = stlink_v1_open(50);
     if (sl == NULL) goto on_error;
+    sl->verbose = 50;
   }
   else /* stlinkv2 */
   {
-    sl = stlink_open_usb(100);
+    sl = stlink_open_usb(50);
     if (sl == NULL) goto on_error;
+    sl->verbose = 50;
   }
 
   if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE)
@@ -129,7 +132,12 @@ int main(int ac, char** av)
   err = 0;
 
  on_error:
-  if (sl != NULL) stlink_close(sl);
+  if (sl != NULL)
+  {
+    stlink_reset(sl);
+    stlink_run(sl);
+    stlink_close(sl);
+  }
 
   return err;
 }