[PATCH 2/3] iio: Add __printf() attributes to various allocation functions

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

A partial set of these was added to IIO a long time back.
This fills in some gaps in coverage highlighted by building
with W=1

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/industrialio-trigger.c   | 2 +-
 include/linux/iio/iio.h              | 4 ++--
 include/linux/iio/trigger_consumer.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 6f16357fd732..adfe023cad48 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -516,7 +516,7 @@ static void iio_trig_subirqunmask(struct irq_data *d)
 	trig->subirqs[d->irq - trig->subirq_base].enabled = true;
 }
 
-static struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs)
+__printf(1, 0) static struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs)
 {
 	struct iio_trigger *trig;
 	int i;
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index e2df67a3b9ab..a02a3efad794 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -691,8 +691,8 @@ static inline void *iio_priv(const struct iio_dev *indio_dev)
 
 void iio_device_free(struct iio_dev *indio_dev);
 struct iio_dev *devm_iio_device_alloc(struct device *parent, int sizeof_priv);
-struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
-						const char *fmt, ...);
+__printf(2, 3) struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
+							  const char *fmt, ...);
 /**
  * iio_buffer_enabled() - helper function to test if the buffer is enabled
  * @indio_dev:		IIO device structure for device
diff --git a/include/linux/iio/trigger_consumer.h b/include/linux/iio/trigger_consumer.h
index 3aa2f132dd67..2c05dfad88d7 100644
--- a/include/linux/iio/trigger_consumer.h
+++ b/include/linux/iio/trigger_consumer.h
@@ -38,7 +38,7 @@ struct iio_poll_func {
 };
 
 
-struct iio_poll_func
+__printf(5, 6) struct iio_poll_func
 *iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
 		    irqreturn_t (*thread)(int irq, void *p),
 		    int type,
-- 
2.28.0