4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 975ef94a0284648fb0137bd5e949b18cef604e33 ]

kfree() is incorrectly used to release the pages allocated by
__get_free_page() and __get_free_pages(). Use the matching deallocators
i.e., free_page() and free_pages(), respectively.

Signed-off-by: Pan Bian <[email protected]>
Reviewed-by: Stefano Stabellini <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/xen/pvcalls-front.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 2f11ca72a281..77224d8f3e6f 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -385,8 +385,8 @@ static int create_active(struct sock_mapping *map, int 
*evtchn)
 out_error:
        if (*evtchn >= 0)
                xenbus_free_evtchn(pvcalls_front_dev, *evtchn);
-       kfree(map->active.data.in);
-       kfree(map->active.ring);
+       free_pages((unsigned long)map->active.data.in, PVCALLS_RING_ORDER);
+       free_page((unsigned long)map->active.ring);
        return ret;
 }
 
-- 
2.19.1



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