drivers/tty/vt/vt_ioctl.c: fix KDFONTOP 32bit compatibility layer
authorSamuel Thibault <[email protected]>
Fri, 3 Feb 2012 23:37:15 +0000 (15:37 -0800)
committerLinus Torvalds <[email protected]>
Sat, 4 Feb 2012 00:16:41 +0000 (16:16 -0800)
KDFONTOP(GET) currently fails with EIO when being run in a 32bit userland
with a 64bit kernel if the font width is not 8.

This is because of the setting of the KD_FONT_FLAG_OLD flag, which makes
con_font_get return EIO in such case.

This flag should *not* be set for KDFONTOP, since it's actually the whole
point of this flag (see comment in con_font_set for instance).

Signed-off-by: Samuel Thibault <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Arthur Taylor <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
drivers/tty/vt/vt_ioctl.c

index 5e096f43bceaceb056098d69227d937501ef27bf..65447c5f91d7e0c1108d5f4db5d6eaf69af53234 100644 (file)
@@ -1463,7 +1463,6 @@ compat_kdfontop_ioctl(struct compat_console_font_op __user *fontop,
        if (!perm && op->op != KD_FONT_OP_GET)
                return -EPERM;
        op->data = compat_ptr(((struct compat_console_font_op *)op)->data);
-       op->flags |= KD_FONT_FLAG_OLD;
        i = con_font_op(vc, op);
        if (i)
                return i;