diff --git a/components/fatfs/diskio/diskio_rawflash.c b/components/fatfs/diskio/diskio_rawflash.c
index 639c6d678b..4bc3eb8ec1 100644
--- a/components/fatfs/diskio/diskio_rawflash.c
+++ b/components/fatfs/diskio/diskio_rawflash.c
@@ -91,9 +91,9 @@ static DRESULT ff_raw_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT cou
 
 static DRESULT ff_raw_ioctl (BYTE pdrv, BYTE cmd, void *buff)
 {
-    const esp_partition_t* part = s_ff_raw_handles[pdrv];
     ESP_LOGV(TAG, "ff_raw_ioctl: cmd=%in", cmd);
-    assert(part);
+    assert(s_ff_raw_handles[pdrv]);
+
     switch (cmd) {
         case CTRL_SYNC:
             return RES_OK;
diff --git a/components/fatfs/vfs/vfs_fat_sdmmc.c b/components/fatfs/vfs/vfs_fat_sdmmc.c
index 335385b1ec..cd012d4d38 100644
--- a/components/fatfs/vfs/vfs_fat_sdmmc.c
+++ b/components/fatfs/vfs/vfs_fat_sdmmc.c
@@ -500,8 +500,12 @@ esp_err_t esp_vfs_fat_sdcard_format_cfg(const char *base_path, sdmmc_card_t *car
 
     //format
     uint32_t id = FF_VOLUMES;
-    bool found = s_get_context_id_by_card(card, &id);
-    assert(found);
+
+    {
+        const bool found = s_get_context_id_by_card(card, &id);
+        (void)found;
+        assert(found);
+    }
 
     if (cfg) {
         s_ctx[id]->mount_config = *cfg;