diff options
| -rw-r--r-- | drivers/fsi/fsi-master-gpio.c | 53 |
1 files changed, 35 insertions, 18 deletions
diff --git a/drivers/fsi/fsi-master-gpio.c b/drivers/fsi/fsi-master-gpio.c index a589a44bd805..c4a06210ddce 100644 --- a/drivers/fsi/fsi-master-gpio.c +++ b/drivers/fsi/fsi-master-gpio.c @@ -786,32 +786,44 @@ static ssize_t external_mode_store(struct device *dev, static DEVICE_ATTR(external_mode, 0664, external_mode_show, external_mode_store); +static void fsi_master_gpio_release(struct device *dev) +{ + struct fsi_master_gpio *master = to_fsi_master_gpio(dev_to_fsi_master(dev)); + + of_node_put(dev_of_node(master->dev)); + + kfree(master); +} + static int fsi_master_gpio_probe(struct platform_device *pdev) { struct fsi_master_gpio *master; struct gpio_desc *gpio; int rc; - master = devm_kzalloc(&pdev->dev, sizeof(*master), GFP_KERNEL); + master = kzalloc(sizeof(*master), GFP_KERNEL); if (!master) return -ENOMEM; master->dev = &pdev->dev; master->master.dev.parent = master->dev; master->master.dev.of_node = of_node_get(dev_of_node(master->dev)); + master->master.dev.release = fsi_master_gpio_release; master->last_addr = LAST_ADDR_INVALID; gpio = devm_gpiod_get(&pdev->dev, "clock", 0); if (IS_ERR(gpio)) { dev_err(&pdev->dev, "failed to get clock gpio\n"); - return PTR_ERR(gpio); + rc = PTR_ERR(gpio); + goto err_free; } master->gpio_clk = gpio; gpio = devm_gpiod_get(&pdev->dev, "data", 0); if (IS_ERR(gpio)) { dev_err(&pdev->dev, "failed to get data gpio\n"); - return PTR_ERR(gpio); + rc = PTR_ERR(gpio); + goto err_free; } master->gpio_data = gpio; @@ -819,21 +831,24 @@ static int fsi_master_gpio_probe(struct platform_device *pdev) gpio = devm_gpiod_get_optional(&pdev->dev, "trans", 0); if (IS_ERR(gpio)) { dev_err(&pdev->dev, "failed to get trans gpio\n"); - return PTR_ERR(gpio); + rc = PTR_ERR(gpio); + goto err_free; } master->gpio_trans = gpio; gpio = devm_gpiod_get_optional(&pdev->dev, "enable", 0); if (IS_ERR(gpio)) { dev_err(&pdev->dev, "failed to get enable gpio\n"); - return PTR_ERR(gpio); + rc = PTR_ERR(gpio); + goto err_free; } master->gpio_enable = gpio; gpio = devm_gpiod_get_optional(&pdev->dev, "mux", 0); if (IS_ERR(gpio)) { dev_err(&pdev->dev, "failed to get mux gpio\n"); - return PTR_ERR(gpio); + rc = PTR_ERR(gpio); + goto err_free; } master->gpio_mux = gpio; @@ -863,27 +878,29 @@ static int fsi_master_gpio_probe(struct platform_device *pdev) rc = device_create_file(&pdev->dev, &dev_attr_external_mode); if (rc) - return rc; + goto err_free; - return fsi_master_register(&master->master); + rc = fsi_master_register(&master->master); + if (rc) { + device_remove_file(&pdev->dev, &dev_attr_external_mode); + put_device(&master->master.dev); + return rc; + } + return 0; + err_free: + kfree(master); + return rc; } + static int fsi_master_gpio_remove(struct platform_device *pdev) { struct fsi_master_gpio *master = platform_get_drvdata(pdev); - devm_gpiod_put(&pdev->dev, master->gpio_clk); - devm_gpiod_put(&pdev->dev, master->gpio_data); - if (master->gpio_trans) - devm_gpiod_put(&pdev->dev, master->gpio_trans); - if (master->gpio_enable) - devm_gpiod_put(&pdev->dev, master->gpio_enable); - if (master->gpio_mux) - devm_gpiod_put(&pdev->dev, master->gpio_mux); - fsi_master_unregister(&master->master); + device_remove_file(&pdev->dev, &dev_attr_external_mode); - of_node_put(master->master.dev.of_node); + fsi_master_unregister(&master->master); return 0; } |