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| author | Jiale Yao <yaojiale02@163.com> | 2026-09-25 21:17:33 +0800 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-09-28 17:07:34 +0100 |
| commit | 2f3196d27e3bfcee0569d23a123aedcc6ddd39f1 (patch) | |
| tree | a254e494b7a62b67c5fd594e0dcd4b705542ae13 /drivers/iio/frequency | |
| parent | 6ac1faf4de61dcf27ffe8f2c25d96fe5f4b2886d (diff) | |
| download | linux-next-2f3196d27e3bfcee0569d23a123aedcc6ddd39f1.tar.gz linux-next-2f3196d27e3bfcee0569d23a123aedcc6ddd39f1.zip | |
iio: frequency: adf4377: reject devices without match data
A device bound through driver_override need not match an entry in the
driver tables. In that case spi_get_device_match_data() returns NULL,
but the result is later dereferenced by the property parsing and
initialization paths.
Reject devices without match data before continuing probe.
Fixes: 6140a92cd086 ("iio: frequency: adf4377: add adf4378 support")
Signed-off-by: Jiale Yao <yaojiale02@163.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Diffstat (limited to 'drivers/iio/frequency')
| -rw-r--r-- | drivers/iio/frequency/adf4377.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iio/frequency/adf4377.c b/drivers/iio/frequency/adf4377.c index 4dd19a9aa994..d1e5bb062474 100644 --- a/drivers/iio/frequency/adf4377.c +++ b/drivers/iio/frequency/adf4377.c @@ -1060,6 +1060,9 @@ static int adf4377_probe(struct spi_device *spi) st->regmap = regmap; st->spi = spi; st->chip_info = spi_get_device_match_data(spi); + if (!st->chip_info) + return -ENODATA; + mutex_init(&st->lock); ret = adf4377_properties_parse(st); |