diff options
| author | Ricky Liang <jcliang@chromium.org> | 2016-05-20 10:58:59 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-05-20 11:00:43 -0700 |
| commit | affa80bd97f7ca282d1faa91667b3ee9e4c590e6 (patch) | |
| tree | 41cf16417f60394ebc527ca37e142c3f73b240a5 /drivers/input | |
| parent | 23ea5967d6bd30ed59480edbc5fe21eec81682a3 (diff) | |
Input: uinput - handle compat ioctl for UI_SET_PHYS
When running a 32-bit userspace on a 64-bit kernel, the UI_SET_PHYS
ioctl needs to be treated with special care, as it has the pointer
size encoded in the command.
Signed-off-by: Ricky Liang <jcliang@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/misc/uinput.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 4eb9e4d94f46..79338f4bdecb 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -981,9 +981,15 @@ 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) + static long uinput_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { + if (cmd == UI_SET_PHYS_COMPAT) + cmd = UI_SET_PHYS; + return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg)); } #endif |