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>

2 files changed, 20 insertions, 10 deletions

diff --git a/drivers/media/video/v4l2-int-device.c b/drivers/media/video/v4l2-int-device.c
index 7885d9b38c92..aa2a8156338d 100644
--- a/drivers/media/video/v4l2-int-device.c
+++ b/drivers/media/video/v4l2-int-device.c
@@ -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);
 }
diff --git a/include/media/v4l2-int-device.h b/include/media/v4l2-int-device.h
index 2b6fc1122f6c..deb28ce6685d 100644
--- a/include/media/v4l2-int-device.h
+++ b/include/media/v4l2-int-device.h
@@ -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                        \