diff --git a/fs/fat/virpart/src/virpart.c b/fs/fat/virpart/src/virpart.c
index 2b7121729ab5a1801fba3b1f37c987521382011c..83d6618853c7fb34439e1fbe2dc312edd0e260ce 100755
--- a/fs/fat/virpart/src/virpart.c
+++ b/fs/fat/virpart/src/virpart.c
@@ -188,7 +188,7 @@ static INT FatfsScanFat(void *handle)
 {
     FATFS *fat = (FATFS *)handle;
     UINT i;
-    INT ret;
+    INT ret = FR_OK;
 
     for (i = 0; i < fat->vir_amount; i++) {
         /* Assert error will not abort the scanning process */