Re: [Linux-ATM-General] [PATCH] drivers: atm: eni: Add pci_dma_mapping_error() call

[Tina J. <tin...@gm...>]

On Mon, 10 Nov 2014, David Miller wrote:

> The 'trouble' label assumes that it is recovering and unwinding state
> when an error occurs after the DMA buffer is successfully mapped.
>
> It unconditionally does pci_unmap_single() if 'paddr' is non-zero
> which it might be in the error case depending upon how DMA errors
> are represented on a given platform.

Sorry for the trouble and thankyou for your very helpful comment. I
will send the revised patch.