genhd must_check warning fix
Fixes: block/genhd.c:361: warning: ignoring return value of ‘class_register’, declared with attribute warn_unused_result Signed-off-by: Roland McGrath <roland@redhat.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -360,7 +360,9 @@ static struct kobject *base_probe(dev_t devt, int *part, void *data)
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static int __init genhd_device_init(void)
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{
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class_register(&block_class);
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int error = class_register(&block_class);
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if (unlikely(error))
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return error;
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bdev_map = kobj_map_init(base_probe, &block_class_lock);
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blk_dev_init();
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