On Thu, Jan 07, 2010 at 11:23:57AM +0100, Peter Korsgaard wrote:
> Commit 4c1fba44296 (Add support for QE DMA mode and CPM1/CPM2 chips)
> added unconditional calls to _cpm_init() / _cpm_free() from
> probe()/remove(), but only checked if we're actually using CPM mode
> in _init(), causing the WARN_ON in mpc8xxx_spi_free_dummy_rx() for !CPM.
>
> Fix it by adding the same check in _cpm_free() as well.
>
> Signed-off-by: Peter Korsgaard <jac...@sunsite.dk>
Acked-by: Anton Vorontsov <avoront...@ru.mvista.com>
Grant, can you please push it for 2.6.33?
Thanks!
> ---
> drivers/spi/spi_mpc8xxx.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> Changes since v1:
> Fix return statement, mpc8xxx_spi_cpm_free() has void return type.
> diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
> index 1fb2a6e..674e7a2 100644
> --- a/drivers/spi/spi_mpc8xxx.c
> +++ b/drivers/spi/spi_mpc8xxx.c
> @@ -946,6 +946,9 @@ static void mpc8xxx_spi_cpm_free(struct mpc8xxx_spi *mspi)
> {
> struct device *dev = mspi->dev;
>
> + if (!(mspi->flags & SPI_CPM_MODE))
> + return;
> +
> dma_unmap_single(dev, mspi->dma_dummy_rx, SPI_MRBLR, DMA_FROM_DEVICE);
> dma_unmap_single(dev, mspi->dma_dummy_tx, PAGE_SIZE, DMA_TO_DEVICE);
> cpm_muram_free(cpm_muram_offset(mspi->tx_bd));
> --
> 1.6.5
>
--
Anton Vorontsov
email: cbouatmai...@gmail.com
irc://irc.freenode.net/bd2
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