[PATCH] atafb: avoid cast when assigning buffer address pointer

[Helge Deller <deller@gmx.de>]

The sparse tool complains that the "cast removes the address space
'__iomem' of expression".
Avoid the cast by using the screen_buffer pointer instead of the
screen_base pointer from the union.

Fixes: d463633d63e6 ("fbdev: atafb: Add support for SuperVidel's SuperBlitter")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609261313.kgFtkz2t-lkp@intel.com/
Cc: Miro Kropáček <miro.kropacek@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/video/fbdev/atafb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
index 5c3e5861543a..c32576cb1720 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -2454,7 +2454,7 @@ static void svblit_fillrect(struct fb_info *info,
 		((u32 *)info->pseudo_palette)[rect->color] : rect->color;
 
 	/* draw the first line with the CPU ... */
-	line = (u8 *)info->screen_base + rect->dy * pitch +
+	line = info->screen_buffer + rect->dy * pitch +
 	       rect->dx * bytespp;
 	switch (bytespp) {
 	case 1:
-- 
2.55.0