On Fri, Oct 20, 2017 at 12:12:42PM +0900, Yoshihiro Shimoda wrote:
> Since this driver checks if the return value of dma_map_sg() is minus
> or not and keeps to enable the DMAC, it may cause kernel panic when
> the dma_map_sg() returns 0. So, this patch fixes the issue.
>
> Reported-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
> Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC")
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Acked-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
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