diff --git a/os/hal/platforms/STM32/sdc_lld.c b/os/hal/platforms/STM32/sdc_lld.c
index f618d7776..ebed7cfa2 100644
--- a/os/hal/platforms/STM32/sdc_lld.c
+++ b/os/hal/platforms/STM32/sdc_lld.c
@@ -79,8 +79,8 @@ static union {
  * @param[in] resp      pointer to the response buffer
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -117,8 +117,8 @@ static bool_t sdc_lld_prepare_read(SDCDriver *sdcp, uint32_t startblk,
  * @param[in] resp      pointer to the response buffer
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -154,8 +154,8 @@ static bool_t sdc_lld_prepare_write(SDCDriver *sdcp, uint32_t startblk,
  * @param[in] resp      pointer to the response buffer
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  */
 static bool_t sdc_lld_wait_transaction_end(SDCDriver *sdcp, uint32_t n,
                                            uint32_t *resp){
@@ -488,8 +488,8 @@ void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg) {
  * @param[out] resp     pointer to the response buffer (one word)
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -522,8 +522,8 @@ bool_t sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
  * @param[out] resp     pointer to the response buffer (one word)
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -556,8 +556,8 @@ bool_t sdc_lld_send_cmd_short_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
  * @param[out] resp     pointer to the response buffer (four words)
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -595,8 +595,8 @@ bool_t sdc_lld_send_cmd_long_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
  * @param[in] n         number of blocks to read
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -657,8 +657,8 @@ error:
  * @param[in] n         number of blocks to write
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -718,8 +718,8 @@ error:
  * @param[in] n         number of blocks to read
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS   operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
@@ -751,8 +751,8 @@ bool_t sdc_lld_read(SDCDriver *sdcp, uint32_t startblk,
  * @param[in] n         number of blocks to write
  *
  * @return              The operation status.
- * @retval FALSE  operation succeeded.
- * @retval TRUE   operation failed.
+ * @retval CH_SUCCESS  operation succeeded.
+ * @retval CH_FAILED    operation failed.
  *
  * @notapi
  */
diff --git a/os/hal/src/sdc.c b/os/hal/src/sdc.c
index 6ae84c98c..7722a0eb7 100644
--- a/os/hal/src/sdc.c
+++ b/os/hal/src/sdc.c
@@ -454,8 +454,8 @@ sdcflags_t sdcGetAndClearErrors(SDCDriver *sdcp) {
  * @param[in] sdcp      pointer to the @p SDCDriver object
  *
  * @return              The operation status.
- * @retval FALSE        the operation succeeded.
- * @retval TRUE         the operation failed.
+ * @retval CH_SUCCESS   the operation succeeded.
+ * @retval CH_FAILED    the operation failed.
  *
  * @api
  */
@@ -466,13 +466,13 @@ bool_t sdcSync(SDCDriver *sdcp) {
   chSysLock();
   if (sdcp->state != SDC_READY) {
     chSysUnlock();
-    return TRUE;
+    return CH_FAILED;
   }
   chSysUnlock();
 
   /* TODO: implement.*/
 
-  return FALSE;
+  return CH_SUCCESS;
 }
 
 /**
@@ -482,8 +482,8 @@ bool_t sdcSync(SDCDriver *sdcp) {
  * @param[out] bdip     pointer to a @p BlockDeviceInfo structure
  *
  * @return              The operation status.
- * @retval FALSE        the operation succeeded.
- * @retval TRUE         the operation failed.
+ * @retval CH_SUCCESS   the operation succeeded.
+ * @retval CH_FAILED    the operation failed.
  *
  * @api
  */
@@ -495,14 +495,14 @@ bool_t sdcGetInfo(SDCDriver *sdcp, BlockDeviceInfo *bdip) {
   chSysLock();
   if (sdcp->state != SDC_READY) {
     chSysUnlock();
-    return TRUE;
+    return CH_FAILED;
   }
   chSysUnlock();
 
   bdip->blk_num = sdcp->capacity;
   bdip->blk_size = MMCSD_BLOCK_SIZE;
 
-  return FALSE;
+  return CH_SUCCESS;
 }
 
 #endif /* HAL_USE_SDC */