[PATCH 3/4] i2c: stm32f7: stop dma transfer in case of NACK

[Wolfram Sang]

On Mon, Sep 20, 2021 at 05:21:31PM +0200, Alain Volmat wrote:
> In case of receiving a NACK, the dma transfer should be stopped
> to avoid feeding data into the FIFO.
> Also ensure to properly return the proper error code and avoid
> waiting for the end of the dma completion in case of
> error happening during the transmission.
> 
> Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support")
> 
> Signed-off-by: Alain Volmat <alain.volmat at foss.st.com>

Applied to for-current, thanks!

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