Commit 251d1bd9 authored by Andrey Smirnov's avatar Andrey Smirnov Committed by Greg Kroah-Hartman

Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD

commit 7c7da40d upstream.

In the case of compat syscall ioctl numbers for UI_BEGIN_FF_UPLOAD and
UI_END_FF_UPLOAD need to be adjusted before being passed on
uinput_ioctl_handler() since code built with -m32 will be passing
slightly different values. Extend the code already covering
UI_SET_PHYS to cover UI_BEGIN_FF_UPLOAD and UI_END_FF_UPLOAD as well.
Reported-by: default avatarPierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Signed-off-by: default avatarAndrey Smirnov <andrew.smirnov@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d36869b3
......@@ -1051,13 +1051,31 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
#ifdef CONFIG_COMPAT
#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
/*
* These IOCTLs change their size and thus their numbers between
* 32 and 64 bits.
*/
#define UI_SET_PHYS_COMPAT \
_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
#define UI_BEGIN_FF_UPLOAD_COMPAT \
_IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
#define UI_END_FF_UPLOAD_COMPAT \
_IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
if (cmd == UI_SET_PHYS_COMPAT)
switch (cmd) {
case UI_SET_PHYS_COMPAT:
cmd = UI_SET_PHYS;
break;
case UI_BEGIN_FF_UPLOAD_COMPAT:
cmd = UI_BEGIN_FF_UPLOAD;
break;
case UI_END_FF_UPLOAD_COMPAT:
cmd = UI_END_FF_UPLOAD;
break;
}
return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}
......
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