Fix memory leak upon failure of esp_vfs_fat_sdmmc_mount()

Closes https://github.com/espressif/esp-idf/issues/4165

diff --git a/components/fatfs/vfs/vfs_fat_sdmmc.c b/components/fatfs/vfs/vfs_fat_sdmmc.c
index 97928f7d02174a19ea5f9d97e35f6f0a05623b09..888f920622db376c7ffb66f77ebe392211484c1b 100644 (file)
--- a/components/fatfs/vfs/vfs_fat_sdmmc.c
+++ b/components/fatfs/vfs/vfs_fat_sdmmc.c
@@ -159,6 +159,8 @@ fail:
     ff_diskio_unregister(pdrv);
     free(s_card);
     s_card = NULL;
+    free(s_base_path);
+    s_base_path = NULL;
     return err;
 }