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V4L/DVB (5883): V4L: Fix a compile warning on non-32-bit machines. 

Fix a compile warning on non-32-bit machines in v4l2-int-device.h.
Add internal ioctl interface fallback function for ioctls with one
argument.

Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Sakari Ailus 2007-07-20 13:12:51 -03:00 committed by Mauro Carvalho Chehab
parent baa05e4b45
commit 63116febb9
2 changed files with 20 additions and 10 deletions
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28
drivers/media/video/v4l2-int-device.c
View File

@ -115,13 +115,9 @@ void v4l2_int_device_unregister(struct v4l2_int_device *d)
mutex_unlock(&mutex);
}
static int no_such_ioctl(struct v4l2_int_device *d)
{
return -EINVAL;
}
/* Adapted from search_extable in extable.c. */
static v4l2_int_ioctl_func *find_ioctl(struct v4l2_int_slave *slave, int cmd)
static v4l2_int_ioctl_func *find_ioctl(struct v4l2_int_slave *slave, int cmd,
v4l2_int_ioctl_func *no_such_ioctl)
{
const struct v4l2_int_ioctl_desc *first = slave->ioctls;
const struct v4l2_int_ioctl_desc *last =
@ -140,15 +136,29 @@ static v4l2_int_ioctl_func *find_ioctl(struct v4l2_int_slave *slave, int cmd)
return mid->func;
}
return &no_such_ioctl;
return no_such_ioctl;
}
static int no_such_ioctl_0(struct v4l2_int_device *d)
{
return -EINVAL;
}
int v4l2_int_ioctl_0(struct v4l2_int_device *d, int cmd)
{
return ((v4l2_int_ioctl_func_0 *)find_ioctl(d->u.slave, cmd))(d);
return ((v4l2_int_ioctl_func_0 *)
find_ioctl(d->u.slave, cmd,
(v4l2_int_ioctl_func *)&no_such_ioctl_0))(d);
}
static int no_such_ioctl_1(struct v4l2_int_device *d, void *arg)
{
return -EINVAL;
}
int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg)
{
return ((v4l2_int_ioctl_func_1 *)find_ioctl(d->u.slave, cmd))(d, arg);
return ((v4l2_int_ioctl_func_1 *)
find_ioctl(d->u.slave, cmd,
(v4l2_int_ioctl_func *)&no_such_ioctl_1))(d, arg);
}

2
include/media/v4l2-int-device.h
View File

@ -170,7 +170,7 @@ int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg);
arg_type asterisk arg) \
{ \
return v4l2_int_ioctl_1(d, vidioc_int_##name##_num, \
(void *)arg); \
(void *)(unsigned long)arg); \
} \
\
static inline struct v4l2_int_ioctl_desc \