Hello Thomas, On 10/28/22 14:22, Thomas Zimmermann wrote: > Cast error pointers when returning them as void __iomem *. Fixes > a number of Sparse warnings, such as the ones shown below. > > ../drivers/gpu/drm/tiny/ofdrm.c:439:31: warning: incorrect type in return expression (different address spaces) > ../drivers/gpu/drm/tiny/ofdrm.c:439:31: expected void [noderef] __iomem * > ../drivers/gpu/drm/tiny/ofdrm.c:439:31: got void * > ../drivers/gpu/drm/tiny/ofdrm.c:442:31: warning: incorrect type in return expression (different address spaces) > ../drivers/gpu/drm/tiny/ofdrm.c:442:31: expected void [noderef] __iomem * > ../drivers/gpu/drm/tiny/ofdrm.c:442:31: got void * > > See [1] for the bug report. > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > Link: https://lore.kernel.org/dri-devel/202210200016.yiQzPIy0-lkp@xxxxxxxxx/ # [1] > --- > drivers/gpu/drm/tiny/ofdrm.c | 16 ++++++++-------- > 1 file changed, 8 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c > index 44f13a2b372be..f1c301820d54b 100644 > --- a/drivers/gpu/drm/tiny/ofdrm.c > +++ b/drivers/gpu/drm/tiny/ofdrm.c > @@ -438,21 +438,21 @@ static void __iomem *get_cmap_address_of(struct ofdrm_device *odev, struct devic > if (!addr_p) > addr_p = of_get_address(of_node, bar_no, &max_size, &flags); > if (!addr_p) > - return ERR_PTR(-ENODEV); > + return (void __iomem *)ERR_PTR(-ENODEV); > There's an IOMEM_ERR_PTR() macro already for these cases. If you use that instead, feel free to add my r-b when posting v3. -- Best regards, Javier Martinez Canillas Core Platforms Red Hat
