diff options
| author | Dotan Barak <[email protected]> | 2013-06-12 15:20:36 +0200 |
|---|---|---|
| committer | Roland Dreier <[email protected]> | 2013-06-27 16:44:38 -0700 |
| commit | 1fe0cb848890a3f4dd965fdce8b4108feb03971f (patch) | |
| tree | 9a67c6334982b2e2a05f2e63e3b2b1ca3740dd13 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | fedaf4ffc224a194e2d13a3ec2abe5df0bc94258 (diff) | |
IB/srp: Fix remove_one crash due to resource exhaustion
If the add_one callback fails during driver load no resources are
allocated so there isn't a need to release any resources. Trying
to clean the resource may lead to the following kernel panic:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa0132331>] srp_remove_one+0x31/0x240 [ib_srp]
RIP: 0010:[<ffffffffa0132331>] [<ffffffffa0132331>] srp_remove_one+0x31/0x240 [ib_srp]
Process rmmod (pid: 4562, threadinfo ffff8800dd738000, task ffff8801167e60c0)
Call Trace:
[<ffffffffa024500e>] ib_unregister_client+0x4e/0x120 [ib_core]
[<ffffffffa01361bd>] srp_cleanup_module+0x15/0x71 [ib_srp]
[<ffffffff810ac6a4>] sys_delete_module+0x194/0x260
[<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
Signed-off-by: Dotan Barak <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Acked-by: Sebastian Riemer <[email protected]>
Acked-by: David Dillow <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions