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[WATCHDOG] at32ap700x-wdt: add iounmap if probe function fails 

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Hans-Christian Egtvedt 2007-06-08 11:03:01 -07:00 committed by Wim Van Sebroeck
parent ff73231611
commit 47d17763e9
1 changed files with 9 additions and 2 deletions
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11
drivers/char/watchdog/at32ap700x_wdt.c
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@ -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;