From: Helge Deller deller@gmx.de
stable inclusion from stable-v6.6.3 commit 5cadd780883275cd7c1f968284e1a8cde4eb9426 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8LBQP
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
--------------------------------
commit 8a32aa17c1cd48df1ddaa78e45abcb8c7a2220d6 upstream.
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@gmx.de Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- include/video/sticore.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/video/sticore.h b/include/video/sticore.h index 945ad60463a1..012b5b46ad7d 100644 --- a/include/video/sticore.h +++ b/include/video/sticore.h @@ -232,7 +232,7 @@ 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];