Am 26.01.23 um 10:28 schrieb Dan Carpenter:
The devm_memremap() function doesn't return NULL, it returns error
pointers.

Fixes: 9a10c7e6519b ("drm/simpledrm: Add support for system memory 
framebuffers")
Signed-off-by: Dan Carpenter <erro...@gmail.com>

Reviewed-by: Thomas Zimmermann <tzimmerm...@suse.de>

---
  drivers/gpu/drm/tiny/simpledrm.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index 2acc0eb32489..63881a3754f8 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -719,8 +719,8 @@ static struct simpledrm_device 
*simpledrm_device_create(struct drm_driver *drv,
                drm_dbg(dev, "using system memory framebuffer at %pr\n", mem);
screen_base = devm_memremap(dev->dev, mem->start, resource_size(mem), MEMREMAP_WC);
-               if (!screen_base)
-                       return ERR_PTR(-ENOMEM);
+               if (IS_ERR(screen_base))
+                       return screen_base;
iosys_map_set_vaddr(&sdev->screen_base, screen_base);
        } else {

--
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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