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[PATCH] block: handle subsystem_register() init errors 

Check and handle init errors.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Randy Dunlap 2006-09-29 01:58:56 -07:00 committed by Linus Torvalds
parent 4d7dd8fd95
commit 87a5726110
1 changed files with 7 additions and 2 deletions
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9
block/genhd.c
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@ -295,10 +295,15 @@ static struct kobject *base_probe(dev_t dev, int *part, void *data)
static int __init genhd_device_init(void)
{
int err;
bdev_map = kobj_map_init(base_probe, &block_subsys_lock);
blk_dev_init();
subsystem_register(&block_subsys);
return 0;
err = subsystem_register(&block_subsys);
if (err < 0)
printk(KERN_WARNING "%s: subsystem_register error: %d\n",
__FUNCTION__, err);
return err;
}
subsys_initcall(genhd_device_init);