ce8273a573
Converting from ->ioctl to ->unlocked_ioctl with explicit lock_kernel lets us kill the ioctl operation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [fixed inode reference in smb_ioctl] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/*
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* ioctl.c
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*
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* Copyright (C) 1995, 1996 by Volker Lendecke
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* Copyright (C) 1997 by Volker Lendecke
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*
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* Please add a note about your changes to smbfs in the ChangeLog file.
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*/
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/ioctl.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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#include <linux/highuid.h>
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#include <linux/smp_lock.h>
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#include <linux/net.h>
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#include <linux/smb_fs.h>
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#include <linux/smb_mount.h>
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#include <asm/uaccess.h>
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#include "proto.h"
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long
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smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
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{
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struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
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struct smb_conn_opt opt;
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int result = -EINVAL;
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lock_kernel();
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switch (cmd) {
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uid16_t uid16;
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uid_t uid32;
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case SMB_IOC_GETMOUNTUID:
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SET_UID(uid16, server->mnt->mounted_uid);
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result = put_user(uid16, (uid16_t __user *) arg);
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break;
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case SMB_IOC_GETMOUNTUID32:
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SET_UID(uid32, server->mnt->mounted_uid);
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result = put_user(uid32, (uid_t __user *) arg);
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break;
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case SMB_IOC_NEWCONN:
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/* arg is smb_conn_opt, or NULL if no connection was made */
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if (!arg) {
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result = 0;
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smb_lock_server(server);
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server->state = CONN_RETRIED;
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printk(KERN_ERR "Connection attempt failed! [%d]\n",
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server->conn_error);
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smbiod_flush(server);
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smb_unlock_server(server);
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break;
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}
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result = -EFAULT;
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if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
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result = smb_newconn(server, &opt);
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break;
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default:
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break;
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}
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unlock_kernel();
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return result;
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}
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