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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-01-23 16:30:17 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2007-07-16 08:52:45 +0200 |
| commit | 264a0472183ce7ad05eea3360f5907880a1e5e78 (patch) | |
| tree | ca66b08269fb08691059a4122e28ecfa3d90ef4f | |
| parent | Add queue resizing support (diff) | |
| download | linux-264a0472183ce7ad05eea3360f5907880a1e5e78.tar.xz linux-264a0472183ce7ad05eea3360f5907880a1e5e78.zip | |
bsg: add cheasy error checks for sysfs stuff
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| -rw-r--r-- | block/bsg.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/block/bsg.c b/block/bsg.c index c56618ae54c3..e97e3ec08ffc 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -983,10 +983,19 @@ int bsg_register_disk(struct gendisk *disk) bsg_device_nr++; bcd->disk = disk; bcd->class_dev = class_device_create(bsg_class, NULL, dev, bcd->dev, "%s", disk->disk_name); + if (!bcd->class_dev) + goto err; list_add_tail(&bcd->list, &bsg_class_list); - sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg"); + if (sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg")) + goto err; mutex_unlock(&bsg_mutex); return 0; +err: + bsg_device_nr--; + if (bcd->class_dev) + class_device_destroy(bsg_class, MKDEV(BSG_MAJOR, bcd->minor)); + mutex_unlock(&bsg_mutex); + return -ENOMEM; } static int __init bsg_init(void) |