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| author | Douglas Miller <doug.miller@cornelisnetworks.com> | 2023-08-02 13:32:41 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-16 18:22:01 +0200 |
| commit | 918c1e6843b7e81d0e5cf7994f41f28dc34c98b0 (patch) | |
| tree | 0cfeca22a50e98730c15e134bdb40f6e43e83806 | |
| parent | df21468bfdc885f2495c01f5bb3e3431f0c07306 (diff) | |
| download | linux-918c1e6843b7e81d0e5cf7994f41f28dc34c98b0.tar.gz linux-918c1e6843b7e81d0e5cf7994f41f28dc34c98b0.tar.bz2 linux-918c1e6843b7e81d0e5cf7994f41f28dc34c98b0.zip | |
IB/hfi1: Fix possible panic during hotplug remove
commit 4fdfaef71fced490835145631a795497646f4555 upstream.
During hotplug remove it is possible that the update counters work
might be pending, and may run after memory has been freed.
Cancel the update counters work before freeing memory.
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Signed-off-by: Douglas Miller <doug.miller@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/169099756100.3927190.15284930454106475280.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index 689921dc3d4a..b69dd618146e 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -12306,6 +12306,7 @@ static void free_cntrs(struct hfi1_devdata *dd) if (dd->synth_stats_timer.function) del_timer_sync(&dd->synth_stats_timer); + cancel_work_sync(&dd->update_cntr_work); ppd = (struct hfi1_pportdata *)(dd + 1); for (i = 0; i < dd->num_pports; i++, ppd++) { kfree(ppd->cntrs); |