xdp: add NULL pointer check in __xdp_return()
authorTaehee Yoo <ap420073@gmail.com>
Thu, 26 Jul 2018 14:17:03 +0000 (23:17 +0900)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 27 Jul 2018 01:43:16 +0000 (03:43 +0200)
commit36e0f12bbfd3016f495904b35e41c5711707509f
tree84480035ecd09784ab8398e884c9652a62ed9f6e
parentd24458e43b103c7eb7b2fd57bcac392fd7750438
xdp: add NULL pointer check in __xdp_return()

rhashtable_lookup() can return NULL. so that NULL pointer
check routine should be added.

Fixes: 02b55e5657c3 ("xdp: add MEM_TYPE_ZERO_COPY")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
net/core/xdp.c