C++ (Cpp) ide_device_get示例

示例#1

文件： ide-gd.c 项目： embest-tech/rowboat-kernel

static struct ide_disk_obj *ide_disk_get(struct gendisk *disk)
{
	struct ide_disk_obj *idkp = NULL;

	mutex_lock(&ide_disk_ref_mutex);
	idkp = ide_drv_g(disk, ide_disk_obj);
	if (idkp) {
		if (ide_device_get(idkp->drive))
			idkp = NULL;
		else
			kref_get(&idkp->kref);
	}
	mutex_unlock(&ide_disk_ref_mutex);
	return idkp;
}

示例#2

文件： ide-scsi.c 项目： LouZiffer/m900_kernel_cupcake-SDX

static struct ide_scsi_obj *ide_scsi_get(struct gendisk *disk)
{
	struct ide_scsi_obj *scsi = NULL;

	mutex_lock(&idescsi_ref_mutex);
	scsi = ide_scsi_g(disk);
	if (scsi) {
		if (ide_device_get(scsi->drive))
			scsi = NULL;
		else
			scsi_host_get(scsi->host);
	}
	mutex_unlock(&idescsi_ref_mutex);
	return scsi;
}

示例#3

文件： ide-cd.c 项目： mecke/linux-2.6

static struct cdrom_info *ide_cd_get(struct gendisk *disk)
{
	struct cdrom_info *cd = NULL;

	mutex_lock(&idecd_ref_mutex);
	cd = ide_drv_g(disk, cdrom_info);
	if (cd) {
		if (ide_device_get(cd->drive))
			cd = NULL;
		else
			get_device(&cd->dev);

	}
	mutex_unlock(&idecd_ref_mutex);
	return cd;
}