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Commit b077ffd6 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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[PATCH] Convert video1394 driver to compat_ioctl 

Convert video1394 driver to compat_ioctl
Signed-off-by: default avatarAndi Kleen <ak@muc.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b8f47fb2
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Inline Side-by-side
Showing with 52 additions and 64 deletions
drivers/ieee1394/video1394.c
View file @ b077ffd6
......@@ -699,7 +699,7 @@ static void initialize_dma_it_ctx(struct dma_iso_ctx *d, int sync_tag,
reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, 1<<d->ctx);
}
static int video1394_ioctl(struct inode *inode, struct file *file,
static int __video1394_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct file_ctx *ctx = (struct file_ctx *)file->private_data;
......@@ -1152,6 +1152,15 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
}
}
static long video1394_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int err;
lock_kernel();
err = __video1394_ioctl(file, cmd, arg);
unlock_kernel();
return err;
}
/*
* This maps the vmalloced and reserved buffer to user space.
*
......@@ -1233,11 +1242,18 @@ static int video1394_release(struct inode *inode, struct file *file)
return 0;
}
#ifdef CONFIG_COMPAT
static long video1394_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg);
#endif
static struct cdev video1394_cdev;
static struct file_operations video1394_fops=
{
.owner = THIS_MODULE,
.ioctl = video1394_ioctl,
.unlocked_ioctl = video1394_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = video1394_compat_ioctl,
#endif
.mmap = video1394_mmap,
.open = video1394_open,
.release = video1394_release
......@@ -1333,8 +1349,7 @@ struct video1394_wait32 {
struct compat_timeval filltime;
};
static int video1394_wr_wait32(unsigned int fd, unsigned int cmd, unsigned long arg,
struct file *file)
static int video1394_wr_wait32(struct file *file, unsigned int cmd, unsigned long arg)
{
struct video1394_wait32 __user *argp = (void __user *)arg;
struct video1394_wait32 wait32;
......@@ -1342,9 +1357,6 @@ static int video1394_wr_wait32(unsigned int fd, unsigned int cmd, unsigned long
mm_segment_t old_fs;
int ret;
if (file->f_op->ioctl != video1394_ioctl)
return -EFAULT;
if (copy_from_user(&wait32, argp, sizeof(wait32)))
return -EFAULT;
......@@ -1356,11 +1368,11 @@ static int video1394_wr_wait32(unsigned int fd, unsigned int cmd, unsigned long
old_fs = get_fs();
set_fs(KERNEL_DS);
if (cmd == VIDEO1394_IOC32_LISTEN_WAIT_BUFFER)
ret = video1394_ioctl(file->f_dentry->d_inode, file,
ret = video1394_ioctl(file,
VIDEO1394_IOC_LISTEN_WAIT_BUFFER,
(unsigned long) &wait);
else
ret = video1394_ioctl(file->f_dentry->d_inode, file,
ret = video1394_ioctl(file,
VIDEO1394_IOC_LISTEN_POLL_BUFFER,
(unsigned long) &wait);
set_fs(old_fs);
......@@ -1378,17 +1390,13 @@ static int video1394_wr_wait32(unsigned int fd, unsigned int cmd, unsigned long
return ret;
}
static int video1394_w_wait32(unsigned int fd, unsigned int cmd, unsigned long arg,
struct file *file)
static int video1394_w_wait32(struct file *file, unsigned int cmd, unsigned long arg)
{
struct video1394_wait32 wait32;
struct video1394_wait wait;
mm_segment_t old_fs;
int ret;
if (file->f_op->ioctl != video1394_ioctl)
return -EFAULT;
if (copy_from_user(&wait32, (void __user *)arg, sizeof(wait32)))
return -EFAULT;
......@@ -1400,11 +1408,11 @@ static int video1394_w_wait32(unsigned int fd, unsigned int cmd, unsigned long a
old_fs = get_fs();
set_fs(KERNEL_DS);
if (cmd == VIDEO1394_IOC32_LISTEN_QUEUE_BUFFER)
ret = video1394_ioctl(file->f_dentry->d_inode, file,
ret = video1394_ioctl(file,
VIDEO1394_IOC_LISTEN_QUEUE_BUFFER,
(unsigned long) &wait);
else
ret = video1394_ioctl(file->f_dentry->d_inode, file,
ret = video1394_ioctl(file,
VIDEO1394_IOC_TALK_WAIT_BUFFER,
(unsigned long) &wait);
set_fs(old_fs);
......@@ -1412,38 +1420,42 @@ static int video1394_w_wait32(unsigned int fd, unsigned int cmd, unsigned long a
return ret;
}
static int video1394_queue_buf32(unsigned int fd, unsigned int cmd, unsigned long arg,
struct file *file)
static int video1394_queue_buf32(struct file *file, unsigned int cmd, unsigned long arg)
{
if (file->f_op->ioctl != video1394_ioctl)
return -EFAULT;
return -EFAULT; /* ??? was there before. */
return -EFAULT;
return video1394_ioctl(file->f_dentry->d_inode, file,
return video1394_ioctl(file,
VIDEO1394_IOC_TALK_QUEUE_BUFFER, arg);
}
static long video1394_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg)
{
switch (cmd) {
case VIDEO1394_IOC_LISTEN_CHANNEL:
case VIDEO1394_IOC_UNLISTEN_CHANNEL:
case VIDEO1394_IOC_TALK_CHANNEL:
case VIDEO1394_IOC_UNTALK_CHANNEL:
return video1394_ioctl(f, cmd, arg);
case VIDEO1394_IOC32_LISTEN_QUEUE_BUFFER:
return video1394_w_wait32(f, cmd, arg);
case VIDEO1394_IOC32_LISTEN_WAIT_BUFFER:
return video1394_wr_wait32(f, cmd, arg);
case VIDEO1394_IOC_TALK_QUEUE_BUFFER:
return video1394_queue_buf32(f, cmd, arg);
case VIDEO1394_IOC32_TALK_WAIT_BUFFER:
return video1394_w_wait32(f, cmd, arg);
case VIDEO1394_IOC32_LISTEN_POLL_BUFFER:
return video1394_wr_wait32(f, cmd, arg);
default:
return -ENOIOCTLCMD;
}
}
#endif /* CONFIG_COMPAT */
static void __exit video1394_exit_module (void)
{
#ifdef CONFIG_COMPAT
int ret;
ret = unregister_ioctl32_conversion(VIDEO1394_IOC_LISTEN_CHANNEL);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC_UNLISTEN_CHANNEL);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC_TALK_CHANNEL);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC_UNTALK_CHANNEL);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_QUEUE_BUFFER);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_WAIT_BUFFER);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC_TALK_QUEUE_BUFFER);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC32_TALK_WAIT_BUFFER);
ret |= unregister_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_POLL_BUFFER);
if (ret)
PRINT_G(KERN_CRIT, "Error unregistering ioctl32 translations");
#endif
hpsb_unregister_protocol(&video1394_driver);
hpsb_unregister_highlevel(&video1394_highlevel);
......@@ -1480,30 +1492,6 @@ static int __init video1394_init_module (void)
return ret;
}
#ifdef CONFIG_COMPAT
{
/* First the compatible ones */
ret = register_ioctl32_conversion(VIDEO1394_IOC_LISTEN_CHANNEL, NULL);
ret |= register_ioctl32_conversion(VIDEO1394_IOC_UNLISTEN_CHANNEL, NULL);
ret |= register_ioctl32_conversion(VIDEO1394_IOC_TALK_CHANNEL, NULL);
ret |= register_ioctl32_conversion(VIDEO1394_IOC_UNTALK_CHANNEL, NULL);
/* These need translation */
ret |= register_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_QUEUE_BUFFER,
video1394_w_wait32);
ret |= register_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_WAIT_BUFFER,
video1394_wr_wait32);
ret |= register_ioctl32_conversion(VIDEO1394_IOC_TALK_QUEUE_BUFFER,
video1394_queue_buf32);
ret |= register_ioctl32_conversion(VIDEO1394_IOC32_TALK_WAIT_BUFFER,
video1394_w_wait32);
ret |= register_ioctl32_conversion(VIDEO1394_IOC32_LISTEN_POLL_BUFFER,
video1394_wr_wait32);
if (ret)
PRINT_G(KERN_INFO, "Error registering ioctl32 translations");
}
#endif
PRINT_G(KERN_INFO, "Installed " VIDEO1394_DRIVER_NAME " module");
return 0;
}
......
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