storvsc: Initialize the sglist

commit 9d2696e658ef4f209955ddaa987d43f1a1bd81a1 upstream.

Properly initialize scatterlist before using it.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index abc5ac5..8960f1a 100644 (file)
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -815,6 +815,7 @@ static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
        if (!bounce_sgl)
                return NULL;
 
        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)
        for (i = 0; i < num_pages; i++) {
                page_buf = alloc_page(GFP_ATOMIC);
                if (!page_buf)