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| author | Matthias Fend <matthias.fend@emfend.at> | 2025-01-21 10:56:55 +0100 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2025-02-25 09:07:25 +0100 |
| commit | 7d8fa0ee43e57c629de2c13f23397f0c394655e9 (patch) | |
| tree | db1b56feb3af579d3341bcd29c1c66346c1e6965 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | media: tc358746: improve calculation of the D-PHY timing registers (diff) | |
| download | linux-7d8fa0ee43e57c629de2c13f23397f0c394655e9.tar.gz linux-7d8fa0ee43e57c629de2c13f23397f0c394655e9.zip | |
media: tc358746: fix locking issue
In tc358746_link_validate() an attempt is made to get the state lock of the
subdev, but since this is already held by the calling function
v4l2_subdev_link_validate(), this leads to a deadlock.
Another problem is that this function queries the link frequency of the
source device. Since some image sensors use the lock of the v4l2 control
handler as a state lock, which is already held at this point, a deadlock
can also occur here.
Move the calculation of the FIFO size from tc358746_link_validate() to
tc358746_apply_misc_config() to avoid the deadlocks mentioned.
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions
