From 15609b042436b223cb1251fec38f1787f6331d53 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20M=C3=BAdry?= <adam.mudry@espressif.com>
Date: Tue, 2 Dec 2025 09:50:14 +0100
Subject: [PATCH] fix(sdmmc): Deinitialize only initialized slots
 (sdmmc_host_deinit function)

Closes https://github.com/espressif/esp-idf/issues/17937
---
 components/esp_driver_sdmmc/src/sdmmc_host.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/esp_driver_sdmmc/src/sdmmc_host.c b/components/esp_driver_sdmmc/src/sdmmc_host.c
index c33479cb1cc..4a84723e212 100644
--- a/components/esp_driver_sdmmc/src/sdmmc_host.c
+++ b/components/esp_driver_sdmmc/src/sdmmc_host.c
@@ -929,7 +929,9 @@ esp_err_t sdmmc_host_deinit(void)
         return ESP_ERR_INVALID_STATE;
     }
     for (int slot = 0; slot < SOC_SDMMC_NUM_SLOTS; slot++) {
-        sdmmc_host_deinit_slot_internal(slot);
+        if (sdmmc_host_slot_initialized(slot)) {
+            sdmmc_host_deinit_slot_internal(slot);
+        }
     }
     sdmmc_host_deinit_internal();