diff options
Diffstat (limited to 'drivers/video/sbuslib.c')
| -rw-r--r-- | drivers/video/sbuslib.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c index 646c43f921c..a4d7cc51ce0 100644 --- a/drivers/video/sbuslib.c +++ b/drivers/video/sbuslib.c @@ -46,6 +46,9 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map, unsigned long off; int i; + if (!(vma->vm_flags & (VM_SHARED | VM_MAYSHARE))) + return -EINVAL; + size = vma->vm_end - vma->vm_start; if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) return -EINVAL; @@ -196,8 +199,7 @@ struct fbcmap32 { #define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32) #define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32) -static int fbiogetputcmap(struct file *file, struct fb_info *info, - unsigned int cmd, unsigned long arg) +static int fbiogetputcmap(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct fbcmap32 __user *argp = (void __user *)arg; struct fbcmap __user *p = compat_alloc_user_space(sizeof(*p)); @@ -213,10 +215,10 @@ static int fbiogetputcmap(struct file *file, struct fb_info *info, ret |= put_user(compat_ptr(addr), &p->blue); if (ret) return -EFAULT; - return info->fbops->fb_ioctl(file->f_dentry->d_inode, file, + return info->fbops->fb_ioctl(info, (cmd == FBIOPUTCMAP32) ? FBIOPUTCMAP_SPARC : FBIOGETCMAP_SPARC, - (unsigned long)p, info); + (unsigned long)p); } struct fbcursor32 { @@ -233,8 +235,7 @@ struct fbcursor32 { #define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32) #define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32) -static int fbiogscursor(struct file *file, struct fb_info *info, - unsigned long arg) +static int fbiogscursor(struct fb_info *info, unsigned long arg) { struct fbcursor __user *p = compat_alloc_user_space(sizeof(*p)); struct fbcursor32 __user *argp = (void __user *)arg; @@ -257,12 +258,10 @@ static int fbiogscursor(struct file *file, struct fb_info *info, ret |= put_user(compat_ptr(addr), &p->image); if (ret) return -EFAULT; - return info->fbops->fb_ioctl(file->f_dentry->d_inode, file, - FBIOSCURSOR, (unsigned long)p, info); + return info->fbops->fb_ioctl(info, FBIOSCURSOR, (unsigned long)p); } -long sbusfb_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg, struct fb_info *info) +int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { switch (cmd) { case FBIOGTYPE: @@ -275,14 +274,13 @@ long sbusfb_compat_ioctl(struct file *file, unsigned int cmd, case FBIOSCURPOS: case FBIOGCURPOS: case FBIOGCURMAX: - return info->fbops->fb_ioctl(file->f_dentry->d_inode, - file, cmd, arg, info); + return info->fbops->fb_ioctl(info, cmd, arg); case FBIOPUTCMAP32: - return fbiogetputcmap(file, info, cmd, arg); + return fbiogetputcmap(info, cmd, arg); case FBIOGETCMAP32: - return fbiogetputcmap(file, info, cmd, arg); + return fbiogetputcmap(info, cmd, arg); case FBIOSCURSOR32: - return fbiogscursor(file, info, arg); + return fbiogscursor(info, arg); default: return -ENOIOCTLCMD; } |