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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty...
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
iio
/
inkern.c
diff --git
a/drivers/iio/inkern.c
b/drivers/iio/inkern.c
index 866fe904cba29e9f9f06d26fb0da16a9ce62b4d4..90c8cb727cc700b63f25c451c5eb4758bb3e400b 100644
(file)
--- a/
drivers/iio/inkern.c
+++ b/
drivers/iio/inkern.c
@@
-449,6
+449,9
@@
static int iio_channel_read(struct iio_channel *chan, int *val, int *val2,
if (val2 == NULL)
val2 = &unused;
+ if(!iio_channel_has_info(chan->channel, info))
+ return -EINVAL;
+
if (chan->indio_dev->info->read_raw_multi) {
ret = chan->indio_dev->info->read_raw_multi(chan->indio_dev,
chan->channel, INDIO_MAX_RAW_ELEMENTS,