Hi Dan,
thanks for pointing this out.
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
I add Thomas in CC since the bug also exists in the native driver I
think (drivers/net/ethernet/amd/xgbe/drivers/net/ethernet/amd/xgbe
/xgbe-dev.c, xgbe_exit function).
Best Regards
Eric
On 12/17/2015 01:27 PM, Dan Carpenter wrote:
> This loop ends with count set to -1 and not zero so the warning message
> isn't printed when it should be. I've fixed this by change the postop
> to a preop.
>
> Fixes: 0990822c9866 ('VFIO: platform: reset: AMD xgbe reset module')
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> index da5356f..d4030d0 100644
> --- a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> +++ b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> @@ -110,7 +110,7 @@ int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
> usleep_range(10, 15);
>
> count = 2000;
> - while (count-- && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
> + while (--count && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
> usleep_range(500, 600);
>
> if (!count)
>
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