[HAL][TIM] Remove __HAL_LOCK() and __HAL_UNLOCK() invocation from both HAL_xxx_RegisterCallback() and HAL_xxx_UnRegisterCallback() Rationale: HAL_xxx_RegisterCallback() must be called before HAL_xxx_Init(), which creates the semaphore used when invoking __HAL_LOCK() and __HAL_UNLOCK(). Invoking __HAL_LOCK() and __HAL_UNLOCK() in HAL_xxx_RegisterCallback() means using the semaphore before its creation.

diff --git a/Src/stm32f7xx_hal_tim.c b/Src/stm32f7xx_hal_tim.c
index 4df212b..20f59c8 100644
--- a/Src/stm32f7xx_hal_tim.c
+++ b/Src/stm32f7xx_hal_tim.c

@@ -5982,8 +5982,6 @@
   {
     return HAL_ERROR;
   }
-  /* Process locked */
-  __HAL_LOCK(htim);
 
   if (htim->State == HAL_TIM_STATE_READY)
   {
@@ -6179,9 +6177,6 @@
     status = HAL_ERROR;
   }
 
-  /* Release Lock */
-  __HAL_UNLOCK(htim);
-
   return status;
 }
 
@@ -6225,9 +6220,6 @@
 {
   HAL_StatusTypeDef status = HAL_OK;
 
-  /* Process locked */
-  __HAL_LOCK(htim);
-
   if (htim->State == HAL_TIM_STATE_READY)
   {
     switch (CallbackID)
@@ -6464,9 +6456,6 @@
     status = HAL_ERROR;
   }
 
-  /* Release Lock */
-  __HAL_UNLOCK(htim);
-
   return status;
 }
 #endif /* USE_HAL_TIM_REGISTER_CALLBACKS */