initialize itemCount and null check

Zondax · Nov 19, 2021 · 3d9da6b · 3d9da6b
1 parent c265a4d
commit 3d9da6b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/deps/ledger-zxlib/app/common/view.c b/deps/ledger-zxlib/app/common/view.c
@@ -70,6 +70,7 @@ void h_paging_init() {
     viewdata.itemIdx = 0;
     viewdata.pageIdx = 0;
     viewdata.pageCount = 1;
+    viewdata.itemCount = 0xFF;
 }
 
 bool h_paging_can_increase() {
@@ -185,6 +186,11 @@ zxerr_t h_review_update_data() {
         return zxerr_no_data;
     }
 
+    if (viewdata.viewfuncGetItem == NULL) {
+        zemu_log_stack("h_review_update_data - GetItem==NULL");
+        return zxerr_no_data;
+    }
+
     char buffer[20];
     snprintf(buffer, sizeof(buffer), "update Idx %d/%d", viewdata.itemIdx, viewdata.pageIdx);
     zemu_log_stack(buffer);