[PATCH 2/4] spi: mt7621: Use the devm_clk_get_enabled() helper to simplify error handling

[AngeloGioacchino Del Regno]

Il 27/08/22 13:42, Christophe JAILLET ha scritto:
> The devm_clk_get_enabled() helper:
>     - calls devm_clk_get()
>     - calls clk_prepare_enable() and registers what is needed in order to
>       call clk_disable_unprepare() when needed, as a managed resource.
> 
> This helper is well suited for cases where the clock would be kept
> prepared or enabled for the whole lifetime of the driver.
> 
> This simplifies the error handling a lot.
> 
> The order between spi_unregister_controller() (in the remove function) and
> the clk_disable_unprepare() (now handle by a  managed resource) is kept
> the same.
> (see commit 46b5c4fb87ce ("spi: mt7621: Don't leak SPI master in probe
> error path") to see why it matters)
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
> Reviewed-by: Matthias Brugger <matthias.bgg at gmail.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>