diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-09-12 20:57:18 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-01 09:13:17 +0100 |
| commit | 004ff4e09bb5f8a7e3212c5ef2642944bc7c524a (patch) | |
| tree | e44e5b3fb2bb6d75b7aff09ff40038268ead331d | |
| parent | bff8a174e055e06f7856bcb1e34989ae48fbc9f5 (diff) | |
synclink_gt(): fix compat_ioctl()
[ Upstream commit 27230e51349fde075598c1b59d15e1ff802f3f6e ]
compat_ptr() for pointer-taking ones...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 636b8ae29b46..344e8c427c7e 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1187,14 +1187,13 @@ 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; @@ -1214,18 +1213,11 @@ 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; } |