IIO: ADC: stm32-dfsdm: avoid unused-variable warning

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 <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
index 7242741..6cd655f 100644 (file)
--- 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;