diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 98dfd6ea209c69cd42b54fcbad286ac83826d7c7..328c47c6aeb1928a720f901f43f2a25e01ebb52e 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3611,6 +3611,7 @@ static struct st_buffer *
 
 	tb->dma = need_dma;
 	tb->buffer_size = got;
+	sg_init_table(tb->sg, max_sg);
 
 	return tb;
 }