root/fs/qnx6/namei.c
// SPDX-License-Identifier: GPL-2.0
/*
 * QNX6 file system, Linux implementation.
 *
 * Version : 1.0.0
 *
 * History :
 *
 * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
 * 16-02-2012 pagemap extension by Al Viro
 *
 */

#include "qnx6.h"

struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
                                unsigned int flags)
{
        unsigned ino;
        struct inode *foundinode = NULL;
        const char *name = dentry->d_name.name;
        int len = dentry->d_name.len;

        if (len > QNX6_LONG_NAME_MAX)
                return ERR_PTR(-ENAMETOOLONG);

        ino = qnx6_find_ino(len, dir, name);
        if (ino) {
                foundinode = qnx6_iget(dir->i_sb, ino);
                if (IS_ERR(foundinode))
                        pr_debug("lookup->iget ->  error %ld\n",
                                 PTR_ERR(foundinode));
        } else {
                pr_debug("%s(): not found %s\n", __func__, name);
        }
        return d_splice_alias(foundinode, dentry);
}