From: Stephen Cameron <stephenmcame...@gmail.com>
Acking controller events on controllers that do not support
it can cause such controllers to lock up.
Reviewed-by: Scott Teel <scott.t...@pmcs.com>
Signed-off-by: Joe Handzik <joseph.t.hand...@hp.com>
Signed-off-by: Don Brace <don.br...@pmcs.com>
---
drivers/scsi/hpsa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 5abd49d..afd192d 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6674,6 +6674,9 @@ static void hpsa_ack_ctlr_events(struct ctlr_info *h)
int i;
char *event_type;
+ if (!(h->fw_support & MISC_FW_EVENT_NOTIFY))
+ return;
+
/* Ask the controller to clear the events we're handling. */
if ((h->transMethod & (CFGTBL_Trans_io_accel1
| CFGTBL_Trans_io_accel2)) &&
--
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