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-rw-r--r--drivers/message/fusion/mptsas.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f77b329f6923..78734e25edd5 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1701,6 +1701,11 @@ mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info,
if (error)
goto out_free_consistent;
+ if (!buffer->NumPhys) {
+ error = -ENODEV;
+ goto out_free_consistent;
+ }
+
/* save config data */
port_info->num_phys = buffer->NumPhys;
port_info->phy_info = kcalloc(port_info->num_phys,