Hi Am 02.11.22 um 14:36 schrieb Javier Martinez Canillas:
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.
Thanks a lot. I was looking for such a macro and couldn't find it. So it's in io.h.
Best regards Thomas
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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