proc: remove useless d_is_dir() check

Remove the d_is_dir() check from tgid_pidfd_to_pid().

It is pointless since you should never get &proc_tgid_base_operations
for f_op on a non-directory.
Suggested-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NChristian Brauner <christian@brauner.io>
上级 6fd2fe49
无相关合并请求
......@@ -3077,8 +3077,7 @@ static const struct file_operations proc_tgid_base_operations = {
struct pid *tgid_pidfd_to_pid(const struct file *file)
{
if (!d_is_dir(file->f_path.dentry) ||
(file->f_op != &proc_tgid_base_operations))
if (file->f_op != &proc_tgid_base_operations)
return ERR_PTR(-EBADF);
return proc_pid(file_inode(file));
......
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