[rtems commit] bsp/stm32h7: Fix warnings

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    c44e404888bb99c1b3ff3052907c9df012d80fb9
Changeset: http://git.rtems.org/rtems/commit/?id=c44e404888bb99c1b3ff3052907c9df012d80fb9

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Fri Apr  3 11:12:53 2020 +0200

bsp/stm32h7: Fix warnings

Update #3910.

---

 bsps/arm/stm32h7/hal/stm32h7xx_hal_dma.c    | 16 ++++++++--------
 bsps/arm/stm32h7/hal/stm32h7xx_hal_dma_ex.c | 14 +++++++-------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma.c
index e2bbea7..da7510b 100644
--- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma.c
+++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma.c
@@ -439,7 +439,7 @@ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma)
     }
     else
     {
-      hdma->DMAmuxRequestGen = 0U;
+      hdma->DMAmuxRequestGen = NULL;
       hdma->DMAmuxRequestGenStatus = 0U;
       hdma->DMAmuxRequestGenStatusMask = 0U;
     }
@@ -535,7 +535,7 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
     DMAmuxChannel, DMAmuxChannelStatus and DMAmuxChannelStatusMask */
     DMA_CalcDMAMUXChannelBaseAndMask(hdma);
 
-    if(hdma->DMAmuxChannel != 0U)
+    if(hdma->DMAmuxChannel != NULL)
     {
       /* Resett he DMAMUX channel that corresponds to the DMA stream */
       hdma->DMAmuxChannel->CCR = 0U;
@@ -557,7 +557,7 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
       hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
     }
 
-    hdma->DMAmuxRequestGen = 0U;
+    hdma->DMAmuxRequestGen = NULL;
     hdma->DMAmuxRequestGenStatus = 0U;
     hdma->DMAmuxRequestGenStatusMask = 0U;
   }
@@ -733,7 +733,7 @@ HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress,
         hdma->DMAmuxChannel->CCR |= DMAMUX_CxCR_SOIE;
       }
 
-      if(hdma->DMAmuxRequestGen != 0U)
+      if(hdma->DMAmuxRequestGen != NULL)
       {
         /* if using DMAMUX request generator, enable the DMAMUX request generator overrun IT*/
         /* enable the request gen overrun IT */
@@ -860,7 +860,7 @@ HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma)
       /* Clear the DMAMUX synchro overrun flag */
       hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
 
-      if(hdma->DMAmuxRequestGen != 0U)
+      if(hdma->DMAmuxRequestGen != NULL)
       {
         /* if using DMAMUX request generator, disable the DMAMUX request generator overrun IT */
         /* disable the request gen overrun IT */
@@ -932,7 +932,7 @@ HAL_StatusTypeDef HAL_DMA_Abort_IT(DMA_HandleTypeDef *hdma)
         /* Clear the DMAMUX synchro overrun flag */
         hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
 
-        if(hdma->DMAmuxRequestGen != 0U)
+        if(hdma->DMAmuxRequestGen != NULL)
         {
           /* if using DMAMUX request generator, disable the DMAMUX request generator overrun IT*/
           /* disable the request gen overrun IT */
@@ -1132,7 +1132,7 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, HAL_DMA_Level
     if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
     {
       /* Check for DMAMUX Request generator (if used) overrun status */
-      if(hdma->DMAmuxRequestGen != 0U)
+      if(hdma->DMAmuxRequestGen != NULL)
       {
         /* if using DMAMUX request generator Check for DMAMUX request generator overrun */
         if((hdma->DMAmuxRequestGenStatus->RGSR & hdma->DMAmuxRequestGenStatusMask) != 0U)
@@ -1773,7 +1773,7 @@ static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t
     /* Clear the DMAMUX synchro overrun flag */
     hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
 
-    if(hdma->DMAmuxRequestGen != 0U)
+    if(hdma->DMAmuxRequestGen != NULL)
     {
       /* Clear the DMAMUX request generator overrun flag */
       hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma_ex.c
index 6a48d94..294ce8c 100644
--- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma_ex.c
+++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dma_ex.c
@@ -183,7 +183,7 @@ HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart(DMA_HandleTypeDef *hdma, uint32_t S
         /* Clear the DMAMUX synchro overrun flag */
         hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
 
-        if(hdma->DMAmuxRequestGen != 0U)
+        if(hdma->DMAmuxRequestGen != NULL)
         {
           /* Clear the DMAMUX request generator overrun flag */
           hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
@@ -279,7 +279,7 @@ HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart_IT(DMA_HandleTypeDef *hdma, uint32_
       /* Clear the DMAMUX synchro overrun flag */
       hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
 
-      if(hdma->DMAmuxRequestGen != 0U)
+      if(hdma->DMAmuxRequestGen != NULL)
       {
         /* Clear the DMAMUX request generator overrun flag */
         hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
@@ -319,7 +319,7 @@ HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart_IT(DMA_HandleTypeDef *hdma, uint32_
         hdma->DMAmuxChannel->CCR |= DMAMUX_CxCR_SOIE;
       }
 
-      if(hdma->DMAmuxRequestGen != 0U)
+      if(hdma->DMAmuxRequestGen != NULL)
       {
         /* if using DMAMUX request generator, enable the DMAMUX request generator overrun IT*/
         /* enable the request gen overrun IT*/
@@ -486,7 +486,7 @@ HAL_StatusTypeDef HAL_DMAEx_ConfigMuxRequestGenerator (DMA_HandleTypeDef *hdma,
   /* check if the DMA state is ready
      and DMA is using a DMAMUX request generator block
   */
-  if(hdma->DMAmuxRequestGen == 0U)
+  if(hdma->DMAmuxRequestGen == NULL)
   {
     /* Set the error code to busy */
     hdma->ErrorCode = HAL_DMA_ERROR_PARAM;
@@ -535,7 +535,7 @@ HAL_StatusTypeDef HAL_DMAEx_EnableMuxRequestGenerator (DMA_HandleTypeDef *hdma)
 
   /* check if the DMA state is ready
      and DMA is using a DMAMUX request generator block */
-  if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != 0U))
+  if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != NULL))
   {
     /* Enable the request generator*/
     hdma->DMAmuxRequestGen->RGCR |= DMAMUX_RGxCR_GE;
@@ -561,7 +561,7 @@ HAL_StatusTypeDef HAL_DMAEx_DisableMuxRequestGenerator (DMA_HandleTypeDef *hdma)
 
   /* check if the DMA state is ready
      and DMA is using a DMAMUX request generator block */
-  if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != 0U))
+  if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != NULL))
   {
     /* Disable the request generator*/
     hdma->DMAmuxRequestGen->RGCR &= ~DMAMUX_RGxCR_GE;
@@ -601,7 +601,7 @@ void HAL_DMAEx_MUX_IRQHandler(DMA_HandleTypeDef *hdma)
     }
   }
 
-  if(hdma->DMAmuxRequestGen != 0)
+  if(hdma->DMAmuxRequestGen != NULL)
   {
    /* if using a DMAMUX request generator block Check for DMAMUX request generator overrun */
     if((hdma->DMAmuxRequestGenStatus->RGSR & hdma->DMAmuxRequestGenStatusMask) != 0U)