forked from Minki/linux
block: fix compiler warning in genhd.c
Warn if something really bad happens if we can't create this link. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -183,6 +183,7 @@ static int exact_lock(dev_t devt, void *data)
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void add_disk(struct gendisk *disk)
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{
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struct backing_dev_info *bdi;
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int retval;
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disk->flags |= GENHD_FL_UP;
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blk_register_region(MKDEV(disk->major, disk->first_minor),
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@ -193,7 +194,8 @@ void add_disk(struct gendisk *disk)
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bdi = &disk->queue->backing_dev_info;
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bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor));
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sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
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retval = sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
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WARN_ON(retval);
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}
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EXPORT_SYMBOL(add_disk);
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