diff options
Diffstat (limited to 'drivers/ieee1394/video1394.c')
| -rw-r--r-- | drivers/ieee1394/video1394.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index 949064a..5c74f79 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -720,7 +720,7 @@ static inline unsigned video1394_buffer_state(struct dma_iso_ctx *d, static long video1394_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct file_ctx *ctx = (struct file_ctx *)file->private_data; + struct file_ctx *ctx = file->private_data; struct ti_ohci *ohci = ctx->ohci; unsigned long flags; void __user *argp = (void __user *)arg; @@ -1045,14 +1045,9 @@ static long video1394_ioctl(struct file *file, if (get_user(qv, &p->packet_sizes)) return -EFAULT; - psizes = kmalloc(buf_size, GFP_KERNEL); - if (!psizes) - return -ENOMEM; - - if (copy_from_user(psizes, qv, buf_size)) { - kfree(psizes); - return -EFAULT; - } + psizes = memdup_user(qv, buf_size); + if (IS_ERR(psizes)) + return PTR_ERR(psizes); } spin_lock_irqsave(&d->lock,flags); @@ -1177,7 +1172,7 @@ static long video1394_ioctl(struct file *file, static int video1394_mmap(struct file *file, struct vm_area_struct *vma) { - struct file_ctx *ctx = (struct file_ctx *)file->private_data; + struct file_ctx *ctx = file->private_data; if (ctx->current_ctx == NULL) { PRINT(KERN_ERR, ctx->ohci->host->id, @@ -1239,12 +1234,12 @@ static int video1394_open(struct inode *inode, struct file *file) ctx->current_ctx = NULL; file->private_data = ctx; - return 0; + return nonseekable_open(inode, file); } static int video1394_release(struct inode *inode, struct file *file) { - struct file_ctx *ctx = (struct file_ctx *)file->private_data; + struct file_ctx *ctx = file->private_data; struct ti_ohci *ohci = ctx->ohci; struct list_head *lh, *next; u64 mask; @@ -1287,7 +1282,8 @@ static const struct file_operations video1394_fops= .poll = video1394_poll, .mmap = video1394_mmap, .open = video1394_open, - .release = video1394_release + .release = video1394_release, + .llseek = no_llseek, }; /*** HOTPLUG STUFF **********************************************************/ |