Revert "[SCSI] Remove full sg table memset()"

A bit too eager - we definitely need to clear the sg table
initially, so that we don't accidentally have ->page & 0x01
true and think that is a chain pointer.

This reverts commit f5c0dde4c66421a3a2d7d6fa604a712c9b0744e5.

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 0c86be71bb33773d504a325270deaf00b88655a2..aac8a02cbe8040348d8383d8551514a619598b2d 100644 (file)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -764,6 +764,8 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
                if (unlikely(!sgl))
                        goto enomem;
 
+               memset(sgl, 0, sizeof(*sgl) * sgp->size);
+
                /*
                 * first loop through, set initial index and return value
                 */