From bbde5709ee4f60a43b7372545454947044655728 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Mon, 23 Mar 2020 15:00:06 +0000 Subject: nvmem: mxs-ocotp: Use devm_add_action_or_reset() for cleanup Use devm_add_action_or_reset() for cleanup to call clk_unprepare(), which can simplify the error handling in .probe, and .remove callback can be dropped. Signed-off-by: Anson Huang Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200323150007.7487-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/mxs-ocotp.c | 30 +++++++++++------------------- 1 file changed, 11 insertions(+), 19 deletions(-) (limited to 'drivers/nvmem') diff --git a/drivers/nvmem/mxs-ocotp.c b/drivers/nvmem/mxs-ocotp.c index 8e4898dec002..588ab56d75b7 100644 --- a/drivers/nvmem/mxs-ocotp.c +++ b/drivers/nvmem/mxs-ocotp.c @@ -130,6 +130,11 @@ static const struct of_device_id mxs_ocotp_match[] = { }; MODULE_DEVICE_TABLE(of, mxs_ocotp_match); +static void mxs_ocotp_action(void *data) +{ + clk_unprepare(data); +} + static int mxs_ocotp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -160,39 +165,26 @@ static int mxs_ocotp_probe(struct platform_device *pdev) return ret; } + ret = devm_add_action_or_reset(&pdev->dev, mxs_ocotp_action, otp->clk); + if (ret) + return ret; + data = match->data; ocotp_config.size = data->size; ocotp_config.priv = otp; ocotp_config.dev = dev; otp->nvmem = devm_nvmem_register(dev, &ocotp_config); - if (IS_ERR(otp->nvmem)) { - ret = PTR_ERR(otp->nvmem); - goto err_clk; - } + if (IS_ERR(otp->nvmem)) + return PTR_ERR(otp->nvmem); platform_set_drvdata(pdev, otp); - return 0; - -err_clk: - clk_unprepare(otp->clk); - - return ret; -} - -static int mxs_ocotp_remove(struct platform_device *pdev) -{ - struct mxs_ocotp *otp = platform_get_drvdata(pdev); - - clk_unprepare(otp->clk); - return 0; } static struct platform_driver mxs_ocotp_driver = { .probe = mxs_ocotp_probe, - .remove = mxs_ocotp_remove, .driver = { .name = "mxs-ocotp", .of_match_table = mxs_ocotp_match, -- cgit v1.2.3