Re: [PATCH] spi-nor: use ERR_CAST in return

From: Boris Brezillon
Date: Sun Feb 12 2017 - 16:46:06 EST


On Sun, 12 Feb 2017 17:43:43 +0100
Nicholas Mc Guire <der.herr@xxxxxxx> wrote:

> This fixes a sparse warning about

Your commit message seems to be incomplete.

Once fixed,

Acked-by: Boris Brezillon <boris.brezilon@xxxxxxxxxxxxxxxxxx>

>
> Signed-off-by: Nicholas Mc Guire <der.herr@xxxxxxx>
> ---
>
> sparse complained about:
> drivers/mtd/spi-nor/intel-spi.c:731:28: warning: incorrect type in return expression (different address spaces)
> drivers/mtd/spi-nor/intel-spi.c:731:28: expected struct intel_spi *
> drivers/mtd/spi-nor/intel-spi.c:731:28: got void [noderef] <asn:2>*base
>
> Patch was compile tested with: multi_v7_defconfig (implies CONFIG_MTD_SPI_NOR=y)
>
> Patch is against 4.10-rc6 (localversion-next is next-20170210)
>
> drivers/mtd/spi-nor/intel-spi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/intel-spi.c b/drivers/mtd/spi-nor/intel-spi.c
> index e43ce63..986a3d0 100644
> --- a/drivers/mtd/spi-nor/intel-spi.c
> +++ b/drivers/mtd/spi-nor/intel-spi.c
> @@ -728,7 +728,7 @@ struct intel_spi *intel_spi_probe(struct device *dev,
>
> ispi->base = devm_ioremap_resource(dev, mem);
> if (IS_ERR(ispi->base))
> - return ispi->base;
> + return ERR_CAST(ispi->base);
>
> ispi->dev = dev;
> ispi->info = info;