From 7ac2e9358d382227c06a90cf23af3b2d20c5c03a Mon Sep 17 00:00:00 2001
From: Ken Carpenter <ken@foundationdevices.com>
Date: Thu, 29 Jul 2021 13:52:28 -0700
Subject: [PATCH] PASS1-102: Fix backwards microSD issue

Found that `ErrorCode` in `SD_HandleTypeDef` was not reset after a failure.
Updated `HAL_SD_Init()` to reset it before attempting initialization.
---
 lib/stm32lib/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/stm32lib/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sd.c b/lib/stm32lib/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sd.c
index 36daf5c..9f55064 100644
--- a/lib/stm32lib/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sd.c
+++ b/lib/stm32lib/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sd.c
@@ -293,6 +293,9 @@ HAL_StatusTypeDef HAL_SD_Init(SD_HandleTypeDef *hsd)
     return HAL_ERROR;
   }
 
+  /* Initialize error code before attempting initialization so we don't inherit errors from previous init attempts */
+  hsd->ErrorCode = HAL_SD_ERROR_NONE;
+
   /* Check the parameters */
   assert_param(IS_SDMMC_ALL_INSTANCE(hsd->Instance));
   assert_param(IS_SDMMC_CLOCK_EDGE(hsd->Init.ClockEdge));