diff options
Diffstat (limited to 'drivers/cxl/pmem.c')
| -rw-r--r-- | drivers/cxl/pmem.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c index 17e82ae90456..b65a272a2d6d 100644 --- a/drivers/cxl/pmem.c +++ b/drivers/cxl/pmem.c @@ -315,6 +315,31 @@ static struct cxl_driver cxl_nvdimm_bridge_driver = { .id = CXL_DEVICE_NVDIMM_BRIDGE, }; +/* + * Return all bridges to the CXL_NVB_NEW state to invalidate any + * ->state_work referring to the now destroyed cxl_pmem_wq. + */ +static int cxl_nvdimm_bridge_reset(struct device *dev, void *data) +{ + struct cxl_nvdimm_bridge *cxl_nvb; + + if (!is_cxl_nvdimm_bridge(dev)) + return 0; + + cxl_nvb = to_cxl_nvdimm_bridge(dev); + device_lock(dev); + cxl_nvb->state = CXL_NVB_NEW; + device_unlock(dev); + + return 0; +} + +static void destroy_cxl_pmem_wq(void) +{ + destroy_workqueue(cxl_pmem_wq); + bus_for_each_dev(&cxl_bus_type, NULL, NULL, cxl_nvdimm_bridge_reset); +} + static __init int cxl_pmem_init(void) { int rc; @@ -340,7 +365,7 @@ static __init int cxl_pmem_init(void) err_nvdimm: cxl_driver_unregister(&cxl_nvdimm_bridge_driver); err_bridge: - destroy_workqueue(cxl_pmem_wq); + destroy_cxl_pmem_wq(); return rc; } @@ -348,7 +373,7 @@ static __exit void cxl_pmem_exit(void) { cxl_driver_unregister(&cxl_nvdimm_driver); cxl_driver_unregister(&cxl_nvdimm_bridge_driver); - destroy_workqueue(cxl_pmem_wq); + destroy_cxl_pmem_wq(); } MODULE_LICENSE("GPL v2"); |