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| author | Deepak Nibade <dnibade@nvidia.com> | 2015-10-12 04:51:34 -0400 |
|---|---|---|
| committer | Ishan Mittal <imittal@nvidia.com> | 2015-10-20 02:52:04 -0400 |
| commit | da8ff40e55c498f2ca24d446d45cda9d4d83bbcf (patch) | |
| tree | 878ffca16046eabf03b9e1e334b45edeec341162 /drivers/gpu/nvgpu/gk20a/fifo_gk20a.c | |
| parent | 68099f8298d25e94579f7d45c61b959f2c7ac184 (diff) | |
gpu: nvgpu: fix deadlock on timeout lock
In gk20a_channel_timeout_stop(), we take the channel's
timeout lock and then cancel the timeout worker thread
Timeout worker thread also tries to acquire same timeout
lock.
Hence, while cancelling the timeout in gk20a_channel_timeout_stop()
if the timeout_handler is already scheduled, we will have a deadlock
Fix this by moving cancel_delayed_work_sync() out of the locks
Bug 200133289
Bug 1695481
Change-Id: Iea78770180b483a63e5e176efba27831174e9dde
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/815922
Reviewed-by: Ishan Mittal <imittal@nvidia.com>
Tested-by: Ishan Mittal <imittal@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/fifo_gk20a.c')
0 files changed, 0 insertions, 0 deletions