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SubjectRe: [PATCH] watchdog: ts72xx_wdt: Kill superfluous variable in remove
On Tue, Aug 19, 2014 at 02:57:12PM +0300, Mika Westerberg wrote:
> There is no need to store the return value of misc_deregister() in a
> variable. Instead we can just return the value directly.
>
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> ---
> drivers/watchdog/ts72xx_wdt.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
> index afa9d6ef353a..dee9c6cbe6df 100644
> --- a/drivers/watchdog/ts72xx_wdt.c
> +++ b/drivers/watchdog/ts72xx_wdt.c
> @@ -428,11 +428,7 @@ static int ts72xx_wdt_probe(struct platform_device *pdev)
>
> static int ts72xx_wdt_remove(struct platform_device *pdev)
> {
> - int error;
> -
> - error = misc_deregister(&ts72xx_wdt_miscdev);
> -
> - return error;
> + return misc_deregister(&ts72xx_wdt_miscdev);

Is that worth it, and does it even reduce code size ?
Converting the driver to use the watchdog infrastructure would make much more sense
(if someone can test the result).

Guenter


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