Explain why the driver needs a mutex.
Signed-off-by: Harald Geyer <harald@xxxxxxxxx>
---
drivers/iio/humidity/dht11.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index 343d26a..bb5ad57 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -63,6 +63,7 @@ struct dht11 {
int irq;
struct completion completion;
+ /* The iio sysfs interface doesn't prevent concurrent reads: */
struct mutex lock;
s64 timestamp;
--
1.7.10.4
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