scsi: ses: Handle positive SCSI error from ses_recv_diag()

ses_recv_diag() can return a positive value, which also means that an
error happened, so do not only test for negative values.

Cc: James E.J. Bottomley <[email protected]>
Cc: Martin K. Petersen <[email protected]>
Cc: stable <[email protected]>
Assisted-by: gkh_clanker_2000
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Link: https://patch.msgid.link/2026022301-bony-overstock-a07f@gregkh
Signed-off-by: Martin K. Petersen <[email protected]>

Author: gregkh

drivers/scsi/ses.c

@@ -215,7 +215,7 @@ 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;
 
-	if (ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len) < 0)
+	if (ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len))
 		return NULL;
 
 	for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) {