[PATCH] xfrm: Fix return value check of copy_sec_ctx.

Please add this patch to stable 3.18, 4.4 and 4.9 It exists in 4.14. ---------------------------------------------------------------------------- commit 8598112d04af21cf6c895670e72dcb8a9f58e74f Author: Steffen Klassert steffen.klassert@secunet.com Date: Thu Aug 31 10:37:00 2017 +0200

xfrm: Fix return value check of copy_sec_ctx.

A recent commit added an output_mark. When copying this output_mark, the return value of copy_sec_ctx is overwitten without a check. Fix this by copying the output_mark before the security context.

Fixes: 077fbac405bf ("net: xfrm: support setting an output mark.") Signed-off-by: Steffen Klassert steffen.klassert@secunet.com