diff options
Diffstat (limited to 'drivers/pci/pcie/bwctrl.c')
| -rw-r--r-- | drivers/pci/pcie/bwctrl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c index 3cd3e2d066c9..b59cacc740fa 100644 --- a/drivers/pci/pcie/bwctrl.c +++ b/drivers/pci/pcie/bwctrl.c @@ -27,6 +27,7 @@ #include <linux/interrupt.h> #include <linux/mutex.h> #include <linux/pci.h> +#include <linux/pci-bwctrl.h> #include <linux/rwsem.h> #include <linux/slab.h> #include <linux/types.h> @@ -38,10 +39,12 @@ * struct pcie_bwctrl_data - PCIe bandwidth controller * @set_speed_mutex: Serializes link speed changes * @lbms_count: Count for LBMS (since last reset) + * @cdev: Thermal cooling device associated with the port */ struct pcie_bwctrl_data { struct mutex set_speed_mutex; atomic_t lbms_count; + struct thermal_cooling_device *cdev; }; /* @@ -314,11 +317,20 @@ static int pcie_bwnotif_probe(struct pcie_device *srv) pci_dbg(port, "enabled with IRQ %d\n", srv->irq); + /* Don't fail on errors. Don't leave IS_ERR() "pointer" into ->cdev */ + port->link_bwctrl->cdev = pcie_cooling_device_register(port); + if (IS_ERR(port->link_bwctrl->cdev)) + port->link_bwctrl->cdev = NULL; + return 0; } static void pcie_bwnotif_remove(struct pcie_device *srv) { + struct pcie_bwctrl_data *data = srv->port->link_bwctrl; + + pcie_cooling_device_unregister(data->cdev); + pcie_bwnotif_disable(srv->port); scoped_guard(rwsem_write, &pcie_bwctrl_setspeed_rwsem) |