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ieee1394: eth1394: fix error path in module_init

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This patch fixes some error handlings in eth1394:

- check return value of kmem_cache_create()
- cleanup resources if hpsb_register_protocol() fails

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (whitespace)
This commit is contained in:
Akinobu Mita 2007-04-21 18:36:26 +09:00 committed by Stefan Richter
parent fdc0092bfd
commit 809e905ce7
1 changed files with 12 additions and 3 deletions
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15
drivers/ieee1394/eth1394.c
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@ -1667,17 +1667,26 @@ static struct ethtool_ops ethtool_ops = {
.get_drvinfo = ether1394_get_drvinfo
};
static int __init ether1394_init_module (void)
static int __init ether1394_init_module(void)
{
int err;
packet_task_cache = kmem_cache_create("packet_task",
sizeof(struct packet_task),
0, 0, NULL, NULL);
if (!packet_task_cache)
return -ENOMEM;
hpsb_register_highlevel(&eth1394_highlevel);
return hpsb_register_protocol(&eth1394_proto_driver);
err = hpsb_register_protocol(&eth1394_proto_driver);
if (err) {
hpsb_unregister_highlevel(&eth1394_highlevel);
kmem_cache_destroy(packet_task_cache);
}
return err;
}
static void __exit ether1394_exit_module (void)
static void __exit ether1394_exit_module(void)
{
hpsb_unregister_protocol(&eth1394_proto_driver);
hpsb_unregister_highlevel(&eth1394_highlevel);