From: John Garry Date: Thu, 17 Feb 2022 15:42:29 +0000 (+0800) Subject: scsi: libsas: Handle non-TMF codes in sas_scsi_find_task() X-Git-Tag: v5.18-rc1~127^2~206 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9aacf6fe90592cc7f64d56505e42606b61b76f00;p=thirdparty%2Fkernel%2Flinux.git scsi: libsas: Handle non-TMF codes in sas_scsi_find_task() LLDD TMF callbacks may return linux or other error codes instead of TMF codes. This may cause problems in sas_scsi_find_task() -> .lldd_query_task(), as only TMF codes are handled there. As such, we may not return a task_disposition type from sas_scsi_find_task(). Function sas_eh_handle_sas_errors() only handles that type, and will only progress error handling for those recognised types. Return TASK_ABORT_FAILED upon exit on the assumption that the command may still be alive and error handling should be escalated. Link: https://lore.kernel.org/r/1645112566-115804-2-git-send-email-john.garry@huawei.com Tested-by: Damien Le Moal Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index bcb391b0c7ed3..19cb954afd80e 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -316,11 +316,13 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task) pr_notice("%s: task 0x%p failed to abort\n", __func__, task); return TASK_ABORT_FAILED; + default: + pr_notice("%s: task 0x%p result code %d not handled\n", + __func__, task, res); } - } } - return res; + return TASK_ABORT_FAILED; } static int sas_recover_lu(struct domain_device *dev, struct scsi_cmnd *cmd)