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scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails

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[ Upstream commit 4155658cee394b22b24c6d64e49247bf26d95b92 ]

fcoe_init() calls fcoe_transport_attach(&fcoe_sw_transport), but when
fcoe_if_init() fails, &fcoe_sw_transport is not detached and leaves freed
&fcoe_sw_transport on fcoe_transports list. This causes panic when
reinserting module.

 BUG: unable to handle page fault for address: fffffbfff82e2213
 RIP: 0010:fcoe_transport_attach+0xe1/0x230 [libfcoe]
 Call Trace:
  <TASK>
  do_one_initcall+0xd0/0x4e0
  load_module+0x5eee/0x7210
  ...

Fixes: 78a582463c ("[SCSI] fcoe: convert fcoe.ko to become an fcoe transport provider driver")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221115092442.133088-1-chenzhongjin@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chen Zhongjin 2022-11-15 17:24:42 +08:00 committed by Greg Kroah-Hartman
parent eccbec017c
commit be5f1a82ad
1 changed files with 1 additions and 0 deletions
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drivers/scsi/fcoe/fcoe.c
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@ -2506,6 +2506,7 @@ static int __init fcoe_init(void)
out_free:
mutex_unlock(&fcoe_config_mutex);
fcoe_transport_detach(&fcoe_sw_transport);
out_destroy:
destroy_workqueue(fcoe_wq);
return rc;