media: mc-device.c: change media_device_request_alloc to match media_ioctl_info

We modified the type of media_device_request_alloc()'s second
parameter from int* to void* so that it can match the interface
defined in struct media_ioctl_info.

[hverkuil: move #ifdef before variable to avoid compile warning]

Signed-off-by: Frederic Chen <frederic.chen@mediatek.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/mc/mc-device.c b/drivers/media/mc/mc-device.c
index da80883..9e56d2a 100644 (file)
--- a/drivers/media/mc/mc-device.c
+++ b/drivers/media/mc/mc-device.c
@@ -370,10 +370,11 @@ static long media_device_get_topology(struct media_device *mdev, void *arg)
        return ret;
 }
 
-static long media_device_request_alloc(struct media_device *mdev,
-                                      int *alloc_fd)
+static long media_device_request_alloc(struct media_device *mdev, void *arg)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER_REQUEST_API
+       int *alloc_fd = arg;
+
        if (!mdev->ops || !mdev->ops->req_validate || !mdev->ops->req_queue)
                return -ENOTTY;
 
@@ -407,7 +408,7 @@ static long copy_arg_to_user(void __user *uarg, void *karg, unsigned int cmd)
 #define MEDIA_IOC_ARG(__cmd, func, fl, from_user, to_user)             \
        [_IOC_NR(MEDIA_IOC_##__cmd)] = {                                \
                .cmd = MEDIA_IOC_##__cmd,                               \
-               .fn = (long (*)(struct media_device *, void *))func,    \
+               .fn = func,                                             \
                .flags = fl,                                            \
                .arg_from_user = from_user,                             \
                .arg_to_user = to_user,                                 \