diff options
| author | Lin Ma <[email protected]> | 2022-11-16 21:02:49 +0800 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2022-11-18 12:37:11 +0000 |
| commit | 0ad6bded175e829c2ca261529c9dce39a32a042d (patch) | |
| tree | 928426d6f60597f3ccc94f1de44e0f4166eb63b5 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 24deec6b9e4a051635f75777844ffc184644fec9 (diff) | |
nfc/nci: fix race with opening and closing
Previously we leverage NCI_UNREG and the lock inside nci_close_device to
prevent the race condition between opening a device and closing a
device. However, it still has problem because a failed opening command
will erase the NCI_UNREG flag and allow another opening command to
bypass the status checking.
This fix corrects that by making sure the NCI_UNREG is held.
Reported-by: [email protected]
Fixes: 48b71a9e66c2 ("NFC: add NCI_UNREG flag to eliminate the race")
Signed-off-by: Lin Ma <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions