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authorAl Viro <viro@zeniv.linux.org.uk>2018-09-13 02:57:18 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2018-10-13 06:50:52 +0200
commit27230e51349fde075598c1b59d15e1ff802f3f6e (patch)
tree426d906a82bb2cd75e2d2ba0310c945fbc14779a /drivers/tty/synclink_gt.c
parentpty: fix compat ioctls (diff)
downloadlinux-27230e51349fde075598c1b59d15e1ff802f3f6e.tar.xz
linux-27230e51349fde075598c1b59d15e1ff802f3f6e.zip
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.c16
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;
}