For function _base_get_event_diag_triggers(), it has a return value, but the description of the comment information is incorrect. In addition, in the abnormal process, 0 should not be returned, 0 means success, here an abnormal value needs to be return, In order to retry after an exception occurs, the setting returns to -EAGAIN, from code analysis, it will not cause infinite retries. Signed-off-by: Gu Mi <gumi@xxxxxxxxxxxxxxxxx> --- drivers/scsi/mpt3sas/mpt3sas_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 565339a..dabbab6 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -5025,7 +5025,7 @@ void mpt3sas_base_clear_st(struct MPT3SAS_ADAPTER *ioc, * persistent pages * @ioc : per adapter object * - * Return: nothing. + * Return: zero on success; otherwise return EAGAIN error codes + * asking the caller to retry. */ static int _base_get_event_diag_triggers(struct MPT3SAS_ADAPTER *ioc) @@ -5050,7 +5050,7 @@ void mpt3sas_base_clear_st(struct MPT3SAS_ADAPTER *ioc, ioc_err(ioc, "%s: Failed to get trigger pg2, ioc_status(0x%04x)\n", __func__, ioc_status)); - return 0; + return -EAGAIN; } if (le16_to_cpu(trigger_pg2.NumMPIEventTrigger)) { -- 1.8.3.1