We should be checking the return code from ses_recv_diag() to
avoid accessing invalid data.
Signed-off-by: Hannes Reinecke <hare@xxxxxxxx>
---
drivers/scsi/ses.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index a37aec8..fc70c00 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -179,7 +179,8 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev,
unsigned char *type_ptr = ses_dev->page1_types;
unsigned char *desc_ptr = ses_dev->page2 + 8;
- ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
+ if (ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len) < 0)
+ return NULL;
for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) {
for (j = 0; j < type_ptr[1]; j++) {
--
1.8.5.6
