[patch] mtd: nand: Fix a couple error codes

[Boris Brezillon]

Hi Dan,

On Tue, 4 Apr 2017 11:15:46 +0300
Dan Carpenter <dan.carpenter at oracle.com> wrote:

> We accidentally return 1 on error instead of proper error codes.

These bugs have not reached Linus' tree yet and I'll have to force push
my nand/next branch because of regressions introduced by other patches
(not related to the Atmel NAND driver rework). Do you mind if I squash
the changes in the original commit?

Thanks,

Boris

> 
> Fixes: 07b23e3db9ed ("mtd: nand: Cleanup/rework the atmel_nand driver")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
> 
> diff --git a/drivers/mtd/nand/atmel/nand-controller.c b/drivers/mtd/nand/atmel/nand-controller.c
> index 27301603f394..b8d17a024dbd 100644
> --- a/drivers/mtd/nand/atmel/nand-controller.c
> +++ b/drivers/mtd/nand/atmel/nand-controller.c
> @@ -1686,7 +1686,7 @@ static int atmel_nand_controller_init(struct atmel_nand_controller *nc,
>  	nc->smc = syscon_node_to_regmap(np);
>  	of_node_put(np);
>  	if (IS_ERR(nc->smc)) {
> -		ret = IS_ERR(nc->smc);
> +		ret = PTR_ERR(nc->smc);
>  		dev_err(dev, "Could not get SMC regmap (err = %d)\n", ret);
>  		return ret;
>  	}
> @@ -1719,7 +1719,7 @@ atmel_smc_nand_controller_init(struct atmel_smc_nand_controller *nc)
>  	nc->matrix = syscon_node_to_regmap(np);
>  	of_node_put(np);
>  	if (IS_ERR(nc->matrix)) {
> -		ret = IS_ERR(nc->matrix);
> +		ret = PTR_ERR(nc->matrix);
>  		dev_err(dev, "Could not get Matrix regmap (err = %d)\n", ret);
>  		return ret;
>  	}