[PATCH] powernv/opal: Handle OPAL_WRONG_STATE error from OPAL fails

[Mukesh Ojha]

On Tuesday 20 December 2016 07:46 PM, Vipin K Parashar wrote:
> Added check for OPAL_WRONG_STATE error code returned from OPAL.
> Currently Linux flashes "unexpected error" over console for this
> error. This will avoid throwing such message and return I/O error
> for such OPAL failures.
>
> Signed-off-by: Vipin K Parashar <vipin at linux.vnet.ibm.com>
> ---
>   arch/powerpc/platforms/powernv/opal.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
> index 2822935..ab91d53 100644
> --- a/arch/powerpc/platforms/powernv/opal.c
> +++ b/arch/powerpc/platforms/powernv/opal.c
> @@ -866,9 +866,10 @@ int opal_error_code(int rc)
>   	case OPAL_NO_MEM:		return -ENOMEM;
>   	case OPAL_PERMISSION:		return -EPERM;
>
> -	case OPAL_UNSUPPORTED:		return -EIO;
> -	case OPAL_HARDWARE:		return -EIO;
> -	case OPAL_INTERNAL_ERROR:	return -EIO;
> +	case OPAL_UNSUPPORTED:
> +	case OPAL_HARDWARE:
> +	case OPAL_INTERNAL_ERROR:
> +	case OPAL_WRONG_STATE:		return -EIO;

Looks good.

Reviewed-by: Mukesh Ojha <mukesh02 at linux.vnet.ibm.com>

>   	default:
>   		pr_err("%s: unexpected OPAL error %d\n", __func__, rc);
>   		return -EIO;