xen: Fixed assignment error in if statement

Fixed assignment error in if statement in balloon.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index a56776dbe095..930fb6817901 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -407,7 +407,8 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
                 nr_pages = ARRAY_SIZE(frame_list);
 
         for (i = 0; i < nr_pages; i++) {
-                if ((page = alloc_page(gfp)) == NULL) {
+                page = alloc_page(gfp);
+                if (page == NULL) {
                         nr_pages = i;
                         state = BP_EAGAIN;
                         break;