Re: [PATCH v2 2/3] i2c: Add helper to ease DMA handling

From: Wolfram Sang
Date: Wed Aug 08 2018 - 16:57:57 EST

On Sat, Jul 07, 2018 at 05:29:54PM +0800, Jun Gao wrote:
> From: Jun Gao <jun.gao@xxxxxxxxxxxx>
> This function is needed by i2c_get_dma_safe_msg_buf() potentially.
> It is used to free DMA safe buffer when DMA operation fails.
> Signed-off-by: Jun Gao <jun.gao@xxxxxxxxxxxx>

Right, we need something like this. This leaks in the sh_mobile driver,
too :(

I am still thinking if there is a nice way to put this functionality
into i2c_release_dma_safe_msg_buf() itself somehow...


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