[media] IR/lirc: further ioctl portability fixups
>From Joris van Rantwijk <jorispubl@xs4all.nl>:
I tested lirc_serial and found that it works fine.
Except the LIRC ioctls do not work in my 64-bit-kernel/32-bit-user
setup. I added compat_ioctl entries in the drivers to fix this.
While doing so, I noticed inconsistencies in the argument type of
the LIRC ioctls. All ioctls are declared in lirc.h as having argument
type __u32, however there are a few places where the driver calls
get_user/put_user with an unsigned long argument.
The patch below changes lirc_dev and lirc_serial to use __u32 for all
ioctl arguments, and adds compat_ioctl entries.
It should probably also be done in the other low-level drivers,
but I don't have hardware to test those.
I've dropped the .compat_ioctl addition from Joris' original patch,
as I swear the non-compat definition should now work for both 32-bit
and 64-bit userspace. Technically, I think we still need/want a
in getting a reply to you).
Reported-by: Joris van Rantwijk <jorispubl@xs4all.nl>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/IR/lirc_dev.c b/drivers/media/IR/lirc_dev.c
index 0572053..e4e4d99 100644
--- a/drivers/media/IR/lirc_dev.c
+++ b/drivers/media/IR/lirc_dev.c
@@ -524,7 +524,7 @@
long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- unsigned long mode;
+ __u32 mode;
int result = 0;
struct irctl *ir = file->private_data;
@@ -541,7 +541,7 @@
switch (cmd) {
case LIRC_GET_FEATURES:
- result = put_user(ir->d.features, (unsigned long *)arg);
+ result = put_user(ir->d.features, (__u32 *)arg);
break;
case LIRC_GET_REC_MODE:
if (!(ir->d.features & LIRC_CAN_REC_MASK)) {
@@ -551,7 +551,7 @@
result = put_user(LIRC_REC2MODE
(ir->d.features & LIRC_CAN_REC_MASK),
- (unsigned long *)arg);
+ (__u32 *)arg);
break;
case LIRC_SET_REC_MODE:
if (!(ir->d.features & LIRC_CAN_REC_MASK)) {
@@ -559,7 +559,7 @@
break;
}
- result = get_user(mode, (unsigned long *)arg);
+ result = get_user(mode, (__u32 *)arg);
if (!result && !(LIRC_MODE2REC(mode) & ir->d.features))
result = -EINVAL;
/*
@@ -568,7 +568,7 @@
*/
break;
case LIRC_GET_LENGTH:
- result = put_user(ir->d.code_length, (unsigned long *)arg);
+ result = put_user(ir->d.code_length, (__u32 *)arg);
break;
case LIRC_GET_MIN_TIMEOUT:
if (!(ir->d.features & LIRC_CAN_SET_REC_TIMEOUT) ||
@@ -577,7 +577,7 @@
break;
}
- result = put_user(ir->d.min_timeout, (unsigned long *)arg);
+ result = put_user(ir->d.min_timeout, (__u32 *)arg);
break;
case LIRC_GET_MAX_TIMEOUT:
if (!(ir->d.features & LIRC_CAN_SET_REC_TIMEOUT) ||
@@ -586,7 +586,7 @@
break;
}
- result = put_user(ir->d.max_timeout, (unsigned long *)arg);
+ result = put_user(ir->d.max_timeout, (__u32 *)arg);
break;
default:
result = -EINVAL;