diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-09-13 03:57:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-28 20:25:35 +0300 |
| commit | b283ffe1d5f544fb967b4be6a13f1bb50763bd0a (patch) | |
| tree | 94069640b573b689ca50b6a6fdfc76c513b67584 /drivers | |
| parent | b133f7fa7a33d8dd4bea59e14cc86fe271f0f49f (diff) | |
| download | linux-b283ffe1d5f544fb967b4be6a13f1bb50763bd0a.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -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 6fc39fbfc275..b5145e8bdf0a 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1192,14 +1192,13 @@ 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; @@ -1219,18 +1218,11 @@ 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; } |