[SCSI] storvsc: Initialize the sglist

Properly initialize scatterlist before using it.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/storvsc_drv.c

@@ -467,6 +467,7 @@ static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
 	if (!bounce_sgl)
 		return NULL;
 
+	sg_init_table(bounce_sgl, num_pages);
 	for (i = 0; i < num_pages; i++) {
 		page_buf = alloc_page(GFP_ATOMIC);
 		if (!page_buf)