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| author | Sakari Ailus <sakari.ailus@iki.fi> | 2013-01-22 19:27:55 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-19 03:44:36 +0400 |
| commit | c6c1d50b51e76b57fbf0651d38a7ae0c3fb9d5cc (patch) | |
| tree | 448be2161521c9af331e4ea5468528b6a388dcd4 /drivers/media/media-devnode.c | |
| parent | cab3e1ffbe1b9c7a607506338f590dc1e6ca9909 (diff) | |
| download | linux-c6c1d50b51e76b57fbf0651d38a7ae0c3fb9d5cc.tar.xz | |
[media] media: Add 64--32 bit compat ioctl handler
Provide an ioctl handler for 32-bit binaries on 64-bit systems.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/media-devnode.c')
| -rw-r--r-- | drivers/media/media-devnode.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c index 023b2a1cbb9b..fb0f0469fad7 100644 --- a/drivers/media/media-devnode.c +++ b/drivers/media/media-devnode.c @@ -116,19 +116,41 @@ static unsigned int media_poll(struct file *filp, return mdev->fops->poll(filp, poll); } -static long media_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +static long +__media_ioctl(struct file *filp, unsigned int cmd, unsigned long arg, + long (*ioctl_func)(struct file *filp, unsigned int cmd, + unsigned long arg)) { struct media_devnode *mdev = media_devnode_data(filp); - if (!mdev->fops->ioctl) + if (!ioctl_func) return -ENOTTY; if (!media_devnode_is_registered(mdev)) return -EIO; - return mdev->fops->ioctl(filp, cmd, arg); + return ioctl_func(filp, cmd, arg); +} + +static long media_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + struct media_devnode *mdev = media_devnode_data(filp); + + return __media_ioctl(filp, cmd, arg, mdev->fops->ioctl); } +#ifdef CONFIG_COMPAT + +static long media_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + struct media_devnode *mdev = media_devnode_data(filp); + + return __media_ioctl(filp, cmd, arg, mdev->fops->compat_ioctl); +} + +#endif /* CONFIG_COMPAT */ + /* Override for the open function */ static int media_open(struct inode *inode, struct file *filp) { @@ -188,6 +210,9 @@ static const struct file_operations media_devnode_fops = { .write = media_write, .open = media_open, .unlocked_ioctl = media_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = media_compat_ioctl, +#endif /* CONFIG_COMPAT */ .release = media_release, .poll = media_poll, .llseek = no_llseek, |