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path: root/drivers/iio/adc/stm32-dfsdm-adc.c
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Diffstat (limited to 'drivers/iio/adc/stm32-dfsdm-adc.c')
-rw-r--r--drivers/iio/adc/stm32-dfsdm-adc.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index 01422d11753c..1b78becaba5d 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -253,7 +253,8 @@ static int stm32_dfsdm_start_filter(struct stm32_dfsdm *dfsdm,
DFSDM_CR1_RSWSTART(1));
}
-static void stm32_dfsdm_stop_filter(struct stm32_dfsdm *dfsdm, unsigned int fl_id)
+static void stm32_dfsdm_stop_filter(struct stm32_dfsdm *dfsdm,
+ unsigned int fl_id)
{
/* Disable conversion */
regmap_update_bits(dfsdm->regmap, DFSDM_CR1(fl_id),
@@ -337,7 +338,7 @@ static int stm32_dfsdm_channel_parse_of(struct stm32_dfsdm *dfsdm,
"st,adc-channel-types", chan_idx,
&of_str);
if (!ret) {
- val = stm32_dfsdm_str2val(of_str, stm32_dfsdm_chan_type);
+ val = stm32_dfsdm_str2val(of_str, stm32_dfsdm_chan_type);
if (val < 0)
return val;
} else {
@@ -349,7 +350,7 @@ static int stm32_dfsdm_channel_parse_of(struct stm32_dfsdm *dfsdm,
"st,adc-channel-clk-src", chan_idx,
&of_str);
if (!ret) {
- val = stm32_dfsdm_str2val(of_str, stm32_dfsdm_chan_src);
+ val = stm32_dfsdm_str2val(of_str, stm32_dfsdm_chan_src);
if (val < 0)
return val;
} else {
@@ -1093,7 +1094,6 @@ static int stm32_dfsdm_adc_probe(struct platform_device *pdev)
char *name;
int ret, irq, val;
-
dev_data = of_device_get_match_data(dev);
iio = devm_iio_device_alloc(dev, sizeof(*adc));
if (!iio) {
@@ -1111,8 +1111,8 @@ static int stm32_dfsdm_adc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, adc);
ret = of_property_read_u32(dev->of_node, "reg", &adc->fl_id);
- if (ret != 0) {
- dev_err(dev, "Missing reg property\n");
+ if (ret != 0 || adc->fl_id >= adc->dfsdm->num_fls) {
+ dev_err(dev, "Missing or bad reg property\n");
return -EINVAL;
}
@@ -1161,7 +1161,6 @@ static int stm32_dfsdm_adc_probe(struct platform_device *pdev)
if (ret < 0)
goto err_cleanup;
- dev_err(dev, "of_platform_populate\n");
if (dev_data->type == DFSDM_AUDIO) {
ret = of_platform_populate(np, NULL, NULL, dev);
if (ret < 0) {