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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2015-10-21 15:16:24 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-10-30 17:24:38 +0900 |
| commit | 0d73122c3229a332286f3a256ba098d124aba066 (patch) | |
| tree | 9e3959bdc53901339eefb03abcb66774c2bf6570 /drivers | |
| parent | 1a47401bb397183e0500db2c7d5f8d2a3506598e (diff) | |
| download | lwn-0d73122c3229a332286f3a256ba098d124aba066.tar.gz lwn-0d73122c3229a332286f3a256ba098d124aba066.zip | |
cxlflash: Fix to avoid lock instrumentation rejection
When running with lock instrumentation (e.g. lockdep), some of the
instrumentation can become disabled at probe time for a cxlflash
adapter. This is due to a missing lock registration for the tmf_slock.
The fix is to call spin_lock_init() for the tmf_slock during probe.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/cxlflash/main.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index afaf5334a4c9..1e5bf0ca81da 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -2410,6 +2410,7 @@ static int cxlflash_probe(struct pci_dev *pdev, INIT_WORK(&cfg->work_q, cxlflash_worker_thread); cfg->lr_state = LINK_RESET_INVALID; cfg->lr_port = -1; + spin_lock_init(&cfg->tmf_slock); mutex_init(&cfg->ctx_tbl_list_mutex); mutex_init(&cfg->ctx_recovery_mutex); init_rwsem(&cfg->ioctl_rwsem); |