On 11/01/18 10:34, Arnd Bergmann wrote:
Building with CONFIG_OF disabled produces a compiler warning:drivers/iio/adc/stm32-dfsdm-core.c: In function 'stm32_dfsdm_probe': drivers/iio/adc/stm32-dfsdm-core.c:245:22: error: unused variable 'pnode' [-Werror=unused-variable] This removes the variable and open-codes it in the only place it gets used to avoid that warning. Fixes: bed73904e76f ("IIO: ADC: add stm32 DFSDM core support") Signed-off-by: Arnd Bergmann <a...@arndb.de> --- drivers/iio/adc/stm32-dfsdm-core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c index 72427414db7f..6cd655f8239b 100644 --- a/drivers/iio/adc/stm32-dfsdm-core.c +++ b/drivers/iio/adc/stm32-dfsdm-core.c @@ -242,7 +242,6 @@ MODULE_DEVICE_TABLE(of, stm32_dfsdm_of_match); static int stm32_dfsdm_probe(struct platform_device *pdev) { struct dfsdm_priv *priv; - struct device_node *pnode = pdev->dev.of_node; const struct of_device_id *of_id; const struct stm32_dfsdm_dev_data *dev_data; struct stm32_dfsdm *dfsdm; @@ -254,7 +253,7 @@ static int stm32_dfsdm_probe(struct platform_device *pdev)priv->pdev = pdev; - of_id = of_match_node(stm32_dfsdm_of_match, pnode);+ of_id = of_match_node(stm32_dfsdm_of_match, pdev->dev.of_node); if (!of_id->data) { dev_err(&pdev->dev, "Data associated to device is missing\n"); return -EINVAL;
FWIW, it looks like this whole lot could be cleaned up by using of_device_get_match_data().
Robin.
