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watchdog: sa11x0/pxa: fix error path of driver initialization

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The change corrects release of captured resources on error path, namely
the clock is disabled and put if misc device registration fails and not
enabled clock is not disabled now.

Fixes: 6924089c48 ("watchdog: sa11x0/pxa: get rid of get_clock_tick_rate")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Vladimir Zapolskiy 2016-12-21 03:18:16 +02:00 committed by Guenter Roeck
parent f3519a662f
commit 027d89d96b
1 changed files with 5 additions and 3 deletions
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8
drivers/watchdog/sa1100_wdt.c
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@ -188,12 +188,14 @@ static int __init sa1100dog_init(void)
pre_margin = oscr_freq * margin;
ret = misc_register(&sa1100dog_miscdev);
if (ret == 0)
if (ret == 0) {
pr_info("SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n",
margin);
return ret;
err:
return 0;
}
clk_disable_unprepare(clk);
err:
clk_put(clk);
return ret;
}