[PATCH 4.9 084/116] IB/rxe: Fix a memory leak in rxe_qp_cleanup()

[Greg Kroah-Hartman]

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

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

From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>

commit e259934d4df7f99f2a5c2c4f074f6a55bd4b1722 upstream.

A socket is associated with every QP by the rxe driver but sock_release()
is never called. Add a call to sock_release() in rxe_qp_cleanup().

Fixes: commit 8700e3e7c48A5 ("Add Soft RoCE driver")
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Moni Shoua <monis@xxxxxxxxxxxx>
Cc: Kamal Heib <kamalh@xxxxxxxxxxxx>
Cc: Amir Vadai <amirv@xxxxxxxxxxxx>
Cc: Haggai Eran <haggaie@xxxxxxxxxxxx>
Reviewed-by: Moni Shoua <monis@xxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/infiniband/sw/rxe/rxe_qp.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -855,4 +855,5 @@ void rxe_qp_cleanup(void *arg)
 	free_rd_atomic_resources(qp);
 
 	kernel_sock_shutdown(qp->sk, SHUT_RDWR);
+	sock_release(qp->sk);
 }