diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-09-12 20:57:18 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-10-13 00:50:52 -0400 |
| commit | 27230e51349fde075598c1b59d15e1ff802f3f6e (patch) | |
| tree | 426d906a82bb2cd75e2d2ba0310c945fbc14779a /drivers/tty/synclink_gt.c | |
| parent | 50f45326afab723df529eca54095e2feac24da2d (diff) | |
synclink_gt(): fix compat_ioctl()
compat_ptr() for pointer-taking ones...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/tty/synclink_gt.c')
| -rw-r--r-- | drivers/tty/synclink_gt.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index b8287a010336..e8a9047de451 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1185,14 +1185,13 @@ static long slgt_compat_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct slgt_info *info = tty->driver_data; - int rc = -ENOIOCTLCMD; + int rc; if (sanity_check(info, tty->name, "compat_ioctl")) return -ENODEV; DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); switch (cmd) { - case MGSL_IOCSPARAMS32: rc = set_params32(info, compat_ptr(arg)); break; @@ -1212,18 +1211,11 @@ static long slgt_compat_ioctl(struct tty_struct *tty, case MGSL_IOCWAITGPIO: case MGSL_IOCGXSYNC: case MGSL_IOCGXCTRL: - case MGSL_IOCSTXIDLE: - case MGSL_IOCTXENABLE: - case MGSL_IOCRXENABLE: - case MGSL_IOCTXABORT: - case TIOCMIWAIT: - case MGSL_IOCSIF: - case MGSL_IOCSXSYNC: - case MGSL_IOCSXCTRL: - rc = ioctl(tty, cmd, arg); + rc = ioctl(tty, cmd, (unsigned long)compat_ptr(arg)); break; + default: + rc = ioctl(tty, cmd, arg); } - DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); return rc; } |