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| author | Christopher S M Hall <[email protected]> | 2025-04-01 23:35:34 +0000 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2025-04-11 16:13:28 +0000 |
| commit | 1a931c4f5e6862e61a4b130cb76b422e1415f644 (patch) | |
| tree | 22caef628d788fe46b59e34684263e426825b1fb /net/unix/af_unix.c | |
| parent | igc: cleanup PTP module if probe fails (diff) | |
| download | kernel-1a931c4f5e6862e61a4b130cb76b422e1415f644.tar.gz kernel-1a931c4f5e6862e61a4b130cb76b422e1415f644.zip | |
igc: add lock preventing multiple simultaneous PTM transactions
Add a mutex around the PTM transaction to prevent multiple transactors
Multiple processes try to initiate a PTM transaction, one or all may
fail. This can be reproduced by running two instances of the
following:
$ sudo phc2sys -O 0 -i tsn0 -m
PHC2SYS exits with:
"ioctl PTP_OFFSET_PRECISE: Connection timed out" when the PTM transaction
fails
Note: Normally two instance of PHC2SYS will not run, but one process
should not break another.
Fixes: a90ec8483732 ("igc: Add support for PTP getcrosststamp()")
Signed-off-by: Christopher S M Hall <[email protected]>
Reviewed-by: Corinna Vinschen <[email protected]>
Signed-off-by: Jacob Keller <[email protected]>
Tested-by: Mor Bar-Gabay <[email protected]>
Acked-by: Vinicius Costa Gomes <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions