Re: [PATCH] driver core: device.h: fix incorrect type in return expression
From: Greg KH
Date: Fri Feb 21 2025 - 03:20:22 EST
On Wed, Jan 22, 2025 at 03:35:03PM +0800, xiaopeitux@xxxxxxxxxxx wrote:
> From: Pei Xiao <xiaopei01@xxxxxxxxxx>
>
> sparse warnings:
> sparse: incorrect type in return expression, expected void
> [noderef] __iomem *, got void *
>
> Fix sparse warnings by use IOMEM_ERR_PTR
>
> Fixes: da7c07b10838 ("driver core: Provide stubs for !IOMEM builds")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-kbuild-all/202501221439.YoPUrrqD-lkp@xxxxxxxxx/
> Signed-off-by: Pei Xiao <xiaopei01@xxxxxxxxxx>
> ---
> include/linux/device.h | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/device.h b/include/linux/device.h
> index 667cb6db9019..d76c31b9f9b9 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -378,14 +378,14 @@ static inline
> void __iomem *devm_ioremap_resource(struct device *dev,
> const struct resource *res)
> {
> - return ERR_PTR(-EINVAL);
> + return IOMEM_ERR_PTR(-EINVAL);
> }
>
> static inline
> void __iomem *devm_ioremap_resource_wc(struct device *dev,
> const struct resource *res)
> {
> - return ERR_PTR(-EINVAL);
> + return IOMEM_ERR_PTR(-EINVAL);
> }
>
> static inline
> @@ -393,7 +393,7 @@ void __iomem *devm_of_iomap(struct device *dev,
> struct device_node *node, int index,
> resource_size_t *size)
> {
> - return ERR_PTR(-EINVAL);
> + return IOMEM_ERR_PTR(-EINVAL);
> }
>
> #endif
> --
> 2.25.1
As the 0-day bot points out, this breaks the build all over the place,
so I'm going to drop it from my trees. Please test-build your code with
the targets that it reported having problems with before submitting it
again.
thanks,
greg k-h