diff options
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/auxiliary.c | 8 | ||||
-rw-r--r-- | drivers/base/core.c | 7 | ||||
-rw-r--r-- | drivers/base/dd.c | 4 | ||||
-rw-r--r-- | drivers/base/firmware_loader/fallback.c | 14 | ||||
-rw-r--r-- | drivers/base/firmware_loader/firmware.h | 10 | ||||
-rw-r--r-- | drivers/base/firmware_loader/main.c | 2 |
6 files changed, 33 insertions, 12 deletions
diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c index adc199dfba3c..6a30264ab2ba 100644 --- a/drivers/base/auxiliary.c +++ b/drivers/base/auxiliary.c @@ -231,6 +231,8 @@ EXPORT_SYMBOL_GPL(auxiliary_find_device); int __auxiliary_driver_register(struct auxiliary_driver *auxdrv, struct module *owner, const char *modname) { + int ret; + if (WARN_ON(!auxdrv->probe) || WARN_ON(!auxdrv->id_table)) return -EINVAL; @@ -246,7 +248,11 @@ int __auxiliary_driver_register(struct auxiliary_driver *auxdrv, auxdrv->driver.bus = &auxiliary_bus_type; auxdrv->driver.mod_name = modname; - return driver_register(&auxdrv->driver); + ret = driver_register(&auxdrv->driver); + if (ret) + kfree(auxdrv->driver.name); + + return ret; } EXPORT_SYMBOL_GPL(__auxiliary_driver_register); diff --git a/drivers/base/core.c b/drivers/base/core.c index 70ef0ed710b8..3a72241b87c6 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -574,8 +574,10 @@ static void devlink_remove_symlinks(struct device *dev, return; } - snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup)); - sysfs_remove_link(&con->kobj, buf); + if (device_is_registered(con)) { + snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup)); + sysfs_remove_link(&con->kobj, buf); + } snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con)); sysfs_remove_link(&sup->kobj, buf); kfree(buf); @@ -2835,6 +2837,7 @@ void device_initialize(struct device *dev) device_pm_init(dev); set_dev_node(dev, -1); #ifdef CONFIG_GENERIC_MSI_IRQ + raw_spin_lock_init(&dev->msi_lock); INIT_LIST_HEAD(&dev->msi_list); #endif INIT_LIST_HEAD(&dev->links.consumers); diff --git a/drivers/base/dd.c b/drivers/base/dd.c index daeb9b5763ae..437cd61343b2 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -653,8 +653,6 @@ dev_groups_failed: else if (drv->remove) drv->remove(dev); probe_failed: - kfree(dev->dma_range_map); - dev->dma_range_map = NULL; if (dev->bus) blocking_notifier_call_chain(&dev->bus->p->bus_notifier, BUS_NOTIFY_DRIVER_NOT_BOUND, dev); @@ -662,6 +660,8 @@ pinctrl_bind_failed: device_links_no_driver(dev); devres_release_all(dev); arch_teardown_dma_ops(dev); + kfree(dev->dma_range_map); + dev->dma_range_map = NULL; driver_sysfs_remove(dev); dev->driver = NULL; dev_set_drvdata(dev, NULL); diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c index 91899d185e31..d7d63c1aa993 100644 --- a/drivers/base/firmware_loader/fallback.c +++ b/drivers/base/firmware_loader/fallback.c @@ -89,12 +89,11 @@ static void __fw_load_abort(struct fw_priv *fw_priv) { /* * There is a small window in which user can write to 'loading' - * between loading done and disappearance of 'loading' + * between loading done/aborted and disappearance of 'loading' */ - if (fw_sysfs_done(fw_priv)) + if (fw_state_is_aborted(fw_priv) || fw_sysfs_done(fw_priv)) return; - list_del_init(&fw_priv->pending_list); fw_state_aborted(fw_priv); } @@ -280,7 +279,6 @@ static ssize_t firmware_loading_store(struct device *dev, * Same logic as fw_load_abort, only the DONE bit * is ignored and we set ABORT only on failure. */ - list_del_init(&fw_priv->pending_list); if (rc) { fw_state_aborted(fw_priv); written = rc; @@ -513,6 +511,11 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout) } mutex_lock(&fw_lock); + if (fw_state_is_aborted(fw_priv)) { + mutex_unlock(&fw_lock); + retval = -EINTR; + goto out; + } list_add(&fw_priv->pending_list, &pending_fw_head); mutex_unlock(&fw_lock); @@ -535,11 +538,10 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout) if (fw_state_is_aborted(fw_priv)) { if (retval == -ERESTARTSYS) retval = -EINTR; - else - retval = -EAGAIN; } else if (fw_priv->is_paged_buf && !fw_priv->data) retval = -ENOMEM; +out: device_del(f_dev); err_put_dev: put_device(f_dev); diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h index 63bd29fdcb9c..a3014e9e2c85 100644 --- a/drivers/base/firmware_loader/firmware.h +++ b/drivers/base/firmware_loader/firmware.h @@ -117,8 +117,16 @@ static inline void __fw_state_set(struct fw_priv *fw_priv, WRITE_ONCE(fw_st->status, status); - if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED) + if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED) { +#ifdef CONFIG_FW_LOADER_USER_HELPER + /* + * Doing this here ensures that the fw_priv is deleted from + * the pending list in all abort/done paths. + */ + list_del_init(&fw_priv->pending_list); +#endif complete_all(&fw_st->completion); + } } static inline void fw_state_aborted(struct fw_priv *fw_priv) diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index 4fdb8219cd08..68c549d71230 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -783,8 +783,10 @@ static void fw_abort_batch_reqs(struct firmware *fw) return; fw_priv = fw->priv; + mutex_lock(&fw_lock); if (!fw_state_is_aborted(fw_priv)) fw_state_aborted(fw_priv); + mutex_unlock(&fw_lock); } /* called from request_firmware() and request_firmware_work_func() */ |