[PATCH] fix noderef.cocci warnings

[kbuild test robot]

From: kbuild test robot <l...@intel.com>

net/bridge/br_multicast.c:999:8-14: ERROR: application of sizeof to pointer

 sizeof when applied to a pointer typed expression gives the size of
 the pointer

Generated by: scripts/coccinelle/misc/noderef.cocci

Fixes: 17c91348ed8b ("Use-after-free in br_multicast_rcv")
CC: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
Signed-off-by: kbuild test robot <l...@intel.com>
---

url:    
https://github.com/0day-ci/linux/commits/Nikolay-Aleksandrov/net-bridge-mcast-fix-possible-uses-of-stale-pointers/20190702-083354

 br_multicast.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -996,7 +996,7 @@ static int br_ip6_multicast_mld2_report(
                        return -EINVAL;
 
                _nsrcs = skb_header_pointer(skb, nsrcs_offset,
-                                          sizeof(_nsrcs), &__nsrcs);
+                                          sizeof(*_nsrcs), &__nsrcs);
                if (!_nsrcs)
                        return -EINVAL;