Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode

Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing
dentry->d_inode as the dentry may cover another layer that has an inode when
the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout.

Signed-off-by: David Howells <[email protected]>
Signed-off-by: Al Viro <[email protected]>
1 file changed