On Fri, Sep 01, 2017 at 03:08:15PM +0200, Marcin Wojtas wrote:
> From: Joe Zhou <[email protected]>
> 
> This patch prevents possible NULL pointer dereference
> during SPI transfers.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Joe Zhou <[email protected]>
> Signed-off-by: Marcin Wojtas <[email protected]>

Reviewed-by: Leif Lindholm <[email protected]>

> ---
>  Platform/Marvell/Drivers/Spi/MvSpiDxe.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/Platform/Marvell/Drivers/Spi/MvSpiDxe.c 
> b/Platform/Marvell/Drivers/Spi/MvSpiDxe.c
> index 0872f61..6ddfcf6 100755
> --- a/Platform/Marvell/Drivers/Spi/MvSpiDxe.c
> +++ b/Platform/Marvell/Drivers/Spi/MvSpiDxe.c
> @@ -226,9 +226,8 @@ MvSpiTransfer (
>      // Wait for memory ready
>      for (Iterator = 0; Iterator < SPI_TIMEOUT; Iterator++) {
>        if (MmioRead32 (SpiRegBase + SPI_INT_CAUSE_REG)) {
> -        *DataInPtr = MmioRead32 (SpiRegBase + SPI_DATA_IN_REG);
> -
>          if (DataInPtr != NULL) {
> +          *DataInPtr = MmioRead32 (SpiRegBase + SPI_DATA_IN_REG);
>            DataInPtr++;
>          }
>          if (DataOutPtr != NULL) {
> -- 
> 1.8.3.1
> 
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