diff options
| author | Tom Parkin <tparkin@katalix.com> | 2020-07-24 16:31:55 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-24 17:19:14 -0700 |
| commit | 493048f5dfcd0093880414928717f68613ba9157 (patch) | |
| tree | cde0594b8ee371b19ca93b0a2cf6b3ca9e02ad57 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | ebb4f5e6e4cd68a856aeea5d319a76f47543c3a9 (diff) | |
l2tp: WARN_ON rather than BUG_ON in l2tp_session_queue_purge
l2tp_session_queue_purge is used during session shutdown to drop any
skbs queued for reordering purposes according to L2TP dataplane rules.
The BUG_ON in this function checks the session magic feather in an
attempt to catch lifetime bugs.
Rather than crashing the kernel with a BUG_ON, we can simply WARN_ON and
refuse to do anything more -- in the worst case this could result in a
leak. However this is highly unlikely given that the session purge only
occurs from codepaths which have obtained the session by means of a lookup
via. the parent tunnel and which check the session "dead" flag to
protect against shutdown races.
While we're here, have l2tp_session_queue_purge return void rather than
an integer, since neither of the callsites checked the return value.
Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
0 files changed, 0 insertions, 0 deletions