Ejemplos de get_compat_cmd en C++ (Cpp)

Ejemplo n.º 1

/* Handle 32-bit COMEDI_CMD ioctl. */
static int compat_cmd(struct file *file, unsigned long arg)
{
    struct comedi_cmd __user *cmd;
    struct comedi32_cmd_struct __user *cmd32;
    int rc;

    cmd32 = compat_ptr(arg);
    cmd = compat_alloc_user_space(sizeof(*cmd));

    rc = get_compat_cmd(cmd, cmd32);
    if (rc)
        return rc;

    return translated_ioctl(file, COMEDI_CMD, (unsigned long)cmd);
}

Ejemplo n.º 2

Archivo: comedi_compat32.c Proyecto: AICP/kernel_moto_shamu

/* Handle 32-bit COMEDI_CMDTEST ioctl. */
static int compat_cmdtest(struct file *file, unsigned long arg)
{
	struct comedi_cmd __user *cmd;
	struct comedi32_cmd_struct __user *cmd32;
	int rc, err;

	cmd32 = compat_ptr(arg);
	cmd = compat_alloc_user_space(sizeof(*cmd));

	rc = get_compat_cmd(cmd, cmd32);
	if (rc)
		return rc;

	rc = translated_ioctl(file, COMEDI_CMDTEST, (unsigned long)cmd);
	if (rc < 0)
		return rc;

	err = put_compat_cmd(cmd32, cmd);
	if (err)
		rc = err;

	return rc;
}

Ejemplo n.º 3

Archivo: comedi_compat32.c Proyecto: AICP/kernel_moto_shamu

/* Handle 32-bit COMEDI_CMD ioctl. */
static int compat_cmd(struct file *file, unsigned long arg)
{
	struct comedi_cmd __user *cmd;
	struct comedi32_cmd_struct __user *cmd32;
	int rc, err;

	cmd32 = compat_ptr(arg);
	cmd = compat_alloc_user_space(sizeof(*cmd));

	rc = get_compat_cmd(cmd, cmd32);
	if (rc)
		return rc;

	rc = translated_ioctl(file, COMEDI_CMD, (unsigned long)cmd);
	if (rc == -EAGAIN) {
		/* Special case: copy cmd back to user. */
		err = put_compat_cmd(cmd32, cmd);
		if (err)
			rc = err;
	}

	return rc;
}