watchdog: zx2967_wdt: Convert to use device managed functions and other improvements

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Use device managed functions to simplify error handling, reduce
source code size, improve readability, and reduce the likelyhood of bugs.
Other improvements as listed below.

The conversion was done automatically with coccinelle using the
following semantic patches. The semantic patches and the scripts
used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches

- Drop assignments to otherwise unused variables
- Drop empty remove function
- Use devm_add_action_or_reset() for calls to clk_disable_unprepare
- Use local variable 'struct device *dev' consistently
- Use devm_watchdog_register_driver() to register watchdog device

Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

...

This commit is contained in:

Guenter Roeck 2019-04-10 09:27:53 -07:00 • committed by Wim Van Sebroeck

parent f7daaa8d1e

commit 6ba3793cc1

1 changed files with 13 additions and 20 deletions

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drivers/watchdog/zx2967_wdt.c

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