5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Helge Deller <deller@xxxxxx>
[ Upstream commit 8a32aa17c1cd48df1ddaa78e45abcb8c7a2220d6 ]
The pointer to the next STI font is actually a signed 32-bit
offset. With this change the 64-bit kernel will correctly subract
the (signed 32-bit) offset instead of adding a (unsigned 32-bit)
offset. It has no effect on 32-bit kernels.
This fixes the stifb driver with a 64-bit kernel on qemu.
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/video/fbdev/sticore.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/sticore.h b/drivers/video/fbdev/sticore.h
index 0ebdd28a0b813..d83ab3ded5f3d 100644
--- a/drivers/video/fbdev/sticore.h
+++ b/drivers/video/fbdev/sticore.h
@@ -231,7 +231,7 @@ struct sti_rom_font {
u8 height;
u8 font_type; /* language type */
u8 bytes_per_char;
- u32 next_font;
+ s32 next_font; /* note: signed int */
u8 underline_height;
u8 underline_pos;
u8 res008[2];
--
2.42.0
