[WATCHDOG] at32ap700x-wdt: add iounmap if probe function fails (47d17763) · Commits · 戴 / test

drivers/char/watchdog/at32ap700x_wdt.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -223,6 +223,11 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
		}

		wdt->regs = ioremap(regs->start, regs->end - regs->start + 1);
		if (!wdt->regs) {
		ret = -ENOMEM;
		dev_dbg(&pdev->dev, "could not map I/O memory\n");
		goto err_free;
		}
		wdt->users = 0;
		wdt->miscdev.minor = WATCHDOG_MINOR;
		wdt->miscdev.name = "watchdog";
		@@ -238,7 +243,7 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
		ret = misc_register(&wdt->miscdev);
		if (ret) {
		dev_dbg(&pdev->dev, "failed to register wdt miscdev\n");
		goto err_register;
		goto err_iounmap;
		}

		platform_set_drvdata(pdev, wdt);
		@@ -247,7 +252,9 @@ static int __init at32_wdt_probe(struct platform_device *pdev)

		return 0;

		err_register:
		err_iounmap:
		iounmap(wdt->regs);
		err_free:
		kfree(wdt);
		wdt = NULL;
		return ret;