Commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared and enabled clocks") provides a new helper function to prepare and enable a clock which keeps prepared (or enabled) during the whole lifetime of the driver. Use devm_request_irq() to request the interrupt, so we can avoid having to manually clean this up. Use the dev_err_probe() helper to simplify error handling during probe. This also handle scenario, when EDEFER is returned and useless error is printed. changes in v3: - Take the last remove free_irq() and add it to be the first devm managed. - Not going any longer than 80 chars than is necessary. Changes in v2: - Also use devm_request_irq() and dev_err_probe() to clean up the at91_adc. - Split the at91_adc patch out to be a new patch set. Jinjie Ruan (3): iio: adc: at91_adc: Use devm_request_irq() helper function iio: adc: at91_adc: Use devm_clk_get_enabled() helper function iio: adc: at91_adc: Simplify with dev_err_probe() drivers/iio/adc/at91_adc.c | 108 +++++++++++++------------------------ 1 file changed, 37 insertions(+), 71 deletions(-) -- 2.34.1