The patch titled
drivers/char/vt_ioctl.c: fix VT_OPENQRY error value
has been added to the -mm tree. Its filename is
drivers-char-vt_ioctlc-fix-vt_openqry-error-value.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/char/vt_ioctl.c: fix VT_OPENQRY error value
From: Graham Gower <graham.gower@xxxxxxxxx>
When all VT's are in use, VT_OPENQRY casts -1 to unsigned char before
returning it to userspace as an int. VT255 is not the next available
console.
Signed-off-by: Graham Gower <graham.gower@xxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/vt_ioctl.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff -puN drivers/char/vt_ioctl.c~drivers-char-vt_ioctlc-fix-vt_openqry-error-value drivers/char/vt_ioctl.c
--- a/drivers/char/vt_ioctl.c~drivers-char-vt_ioctlc-fix-vt_openqry-error-value
+++ a/drivers/char/vt_ioctl.c
@@ -503,6 +503,7 @@ int vt_ioctl(struct tty_struct *tty, str
struct kbd_struct * kbd;
unsigned int console;
unsigned char ucval;
+ unsigned int uival;
void __user *up = (void __user *)arg;
int i, perm;
int ret = 0;
@@ -657,7 +658,7 @@ int vt_ioctl(struct tty_struct *tty, str
break;
case KDGETMODE:
- ucval = vc->vc_mode;
+ uival = vc->vc_mode;
goto setint;
case KDMAPDISP:
@@ -695,7 +696,7 @@ int vt_ioctl(struct tty_struct *tty, str
break;
case KDGKBMODE:
- ucval = ((kbd->kbdmode == VC_RAW) ? K_RAW :
+ uival = ((kbd->kbdmode == VC_RAW) ? K_RAW :
(kbd->kbdmode == VC_MEDIUMRAW) ? K_MEDIUMRAW :
(kbd->kbdmode == VC_UNICODE) ? K_UNICODE :
K_XLATE);
@@ -717,9 +718,9 @@ int vt_ioctl(struct tty_struct *tty, str
break;
case KDGKBMETA:
- ucval = (vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT);
+ uival = (vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT);
setint:
- ret = put_user(ucval, (int __user *)arg);
+ ret = put_user(uival, (int __user *)arg);
break;
case KDGETKEYCODE:
@@ -949,7 +950,7 @@ int vt_ioctl(struct tty_struct *tty, str
for (i = 0; i < MAX_NR_CONSOLES; ++i)
if (! VT_IS_IN_USE(i))
break;
- ucval = i < MAX_NR_CONSOLES ? (i+1) : -1;
+ uival = i < MAX_NR_CONSOLES ? (i+1) : -1;
goto setint;
/*
_
Patches currently in -mm which might be from graham.gower@xxxxxxxxx are
drivers-char-vt_ioctlc-fix-vt_openqry-error-value.patch
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