No idea if this is a problem. Maybe trace_afs_call is just using the address?
julia ---------- Forwarded message ---------- Date: Thu, 23 Feb 2017 23:18:26 +0800 From: kbuild test robot <[email protected]> To: [email protected] Cc: Julia Lawall <[email protected]> Subject: fs/afs/rxrpc.c:187:17-21: ERROR: reference preceded by free on line 184 tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: bc49a7831b1137ce1c2dda1c57e3631655f5d2ae commit: 341f741f04beceebcb30daa12ae2e5e52e64e532 afs: Refcount the afs_call struct date: 6 weeks ago :::::: branch date: 12 hours ago :::::: commit date: 6 weeks ago >> fs/afs/rxrpc.c:187:17-21: ERROR: reference preceded by free on line 184 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git remote update linus git checkout 341f741f04beceebcb30daa12ae2e5e52e64e532 vim +187 fs/afs/rxrpc.c 6c67c7c3 David Howells 2014-05-21 178 call->rxcall = NULL; 6c67c7c3 David Howells 2014-05-21 179 } 6cf12869 Nathaniel Wesley Filardo 2014-05-21 180 if (call->type->destructor) 6c67c7c3 David Howells 2014-05-21 181 call->type->destructor(call); 341f741f David Howells 2017-01-05 182 341f741f David Howells 2017-01-05 183 kfree(call->request); 341f741f David Howells 2017-01-05 @184 kfree(call); 341f741f David Howells 2017-01-05 185 341f741f David Howells 2017-01-05 186 o = atomic_dec_return(&afs_outstanding_calls); 341f741f David Howells 2017-01-05 @187 trace_afs_call(call, afs_call_trace_free, 0, o, 341f741f David Howells 2017-01-05 188 __builtin_return_address(0)); 341f741f David Howells 2017-01-05 189 if (o == 0) 341f741f David Howells 2017-01-05 190 wake_up_atomic_t(&afs_outstanding_calls); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
