diff options
| author | Randy Dunlap <rdunlap@xenotime.net> | 2006-09-29 01:58:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:05 -0700 |
| commit | 87a57261105669d13a9cae747b5b67ca1cbcda3c (patch) | |
| tree | a82f6e81137ef987118e043040adac41599979b3 /block/genhd.c | |
| parent | 4d7dd8fd9557840162b724a8ac1366dd78a12dff (diff) | |
| download | lwn-87a57261105669d13a9cae747b5b67ca1cbcda3c.tar.gz lwn-87a57261105669d13a9cae747b5b67ca1cbcda3c.zip | |
[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>
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/block/genhd.c b/block/genhd.c index 25d1f42568cc..653919d50cd4 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -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); |