From: Ni Fujia <nifujia1@hisilicon.com> driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4NDP8 CVE: NA ------------------- The hisi_hba debugfs_dump_index member should increased after a dump insertion completed, and not before it has started, so fix the code to do so. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Ouyangdelong <ouyangdelong@huawei.com> Signed-off-by: Nifujia <nifujia1@hisilicon.com> Reviewed-by: Wei Li <liwei391@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index a4885d03afe2..8b56d3e81ce1 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3686,7 +3686,6 @@ static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba) do_div(timestamp, NSEC_PER_MSEC); hisi_hba->debugfs_timestamp[debugfs_dump_index] = timestamp; - hisi_hba->debugfs_dump_index++; debugfs_snapshot_prepare_v3_hw(hisi_hba); @@ -3702,6 +3701,7 @@ static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba) debugfs_create_files_v3_hw(hisi_hba); debugfs_snapshot_restore_v3_hw(hisi_hba); + hisi_hba->debugfs_dump_index++; } static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file, -- 2.20.1