[PATCH] IB/mthca: clean up mthca_dereg_mr()

It's cleaner to kfree mthca_mr, and not rely on the fact that ib_mr is the
first field in mthca_mr.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 293c69b1e48f..55a338da9970 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -568,8 +568,9 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd       *pd,
 
 static int mthca_dereg_mr(struct ib_mr *mr)
 {
-        mthca_free_mr(to_mdev(mr->device), to_mmr(mr));
-        kfree(mr);
+        struct mthca_mr *mmr = to_mmr(mr);
+        mthca_free_mr(to_mdev(mr->device), mmr);
+        kfree(mmr);
         return 0;
 }