1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 8af944d7d13d..02cd9458d609 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -3136,7 +3136,7 @@ _ctl_diag_trigger_mpi_store(struct device *cdev,
         spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
         sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
         memset(&ioc->diag_trigger_mpi, 0,
-            sizeof(struct SL_WH_EVENT_TRIGGERS_T));
+            sizeof(ioc->diag_trigger_mpi));
         memcpy(&ioc->diag_trigger_mpi, buf, sz);
         if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
                 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;