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OpenCloudOS-Kernel
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Btrfs: fix __user casting in ioctl.c 

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Omar Sandoval 2017-08-22 23:46:05 -07:00 committed by David Sterba
parent c9162bdfd6
commit 718dc5fade
1 changed files with 5 additions and 5 deletions
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10
fs/btrfs/ioctl.c
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@ -2164,7 +2164,7 @@ static noinline int btrfs_ioctl_tree_search_v2(struct file *file,
inode = file_inode(file);
ret = search_ioctl(inode, &args.key, &buf_size,
(char *)(&uarg->buf[0]));
(char __user *)(&uarg->buf[0]));
if (ret == 0 && copy_to_user(&uarg->key, &args.key, sizeof(args.key)))
ret = -EFAULT;
else if (ret == -EOVERFLOW &&
@ -4489,8 +4489,8 @@ static long btrfs_ioctl_ino_to_path(struct btrfs_root *root, void __user *arg)
ipath->fspath->val[i] = rel_ptr;
}
ret = copy_to_user((void *)(unsigned long)ipa->fspath,
(void *)(unsigned long)ipath->fspath, size);
ret = copy_to_user((void __user *)(unsigned long)ipa->fspath,
ipath->fspath, size);
if (ret) {
ret = -EFAULT;
goto out;
@ -4561,8 +4561,8 @@ static long btrfs_ioctl_logical_to_ino(struct btrfs_fs_info *fs_info,
if (ret < 0)
goto out;
ret = copy_to_user((void *)(unsigned long)loi->inodes,
(void *)(unsigned long)inodes, size);
ret = copy_to_user((void __user *)(unsigned long)loi->inodes, inodes,
size);
if (ret)
ret = -EFAULT;