diff options
| author | John Fastabend <[email protected]> | 2018-01-04 20:02:09 -0800 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2018-01-07 00:01:46 +0100 |
| commit | 5731a879d03bdaa00265f8ebc32dfd0e65d25276 (patch) | |
| tree | 3a9d68d5c946353b0f0583e3440655e555826d60 /drivers/fpga/fpga-mgr.c | |
| parent | 5133550296d43236439494aa955bfb765a89f615 (diff) | |
bpf: sockmap missing NULL psock check
Add psock NULL check to handle a racing sock event that can get the
sk_callback_lock before this case but after xchg happens causing the
refcnt to hit zero and sock user data (psock) to be null and queued
for garbage collection.
Also add a comment in the code because this is a bit subtle and
not obvious in my opinion.
Signed-off-by: John Fastabend <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions