linux-kernel - [PATCH 4.14 22/54] iio: srf08: fix link error "devm_iio_triggered_buffer

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Date:   Mon, 26 Feb 2018 21:21:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Andreas Klinger <ak@...klinger.de>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 4.14 22/54] iio: srf08: fix link error "devm_iio_triggered_buffer_setup" undefined

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andreas Klinger <ak@...klinger.de>

commit 511051d509ec54642dd6d30fdf2caa33c23619cc upstream.

Functions for triggered buffer support are needed by this module.
If they are not defined accidentally by another driver, there's an error
thrown out while linking.

Add a select of IIO_BUFFER and IIO_TRIGGERED_BUFFER in the Kconfig file.

Signed-off-by: Andreas Klinger <ak@...klinger.de>
Fixes: a83195937151 ("iio: srf08: add triggered buffer support")
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iio/proximity/Kconfig |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -58,6 +58,8 @@ config SX9500
 
 config SRF08
 	tristate "Devantech SRF02/SRF08/SRF10 ultrasonic ranger sensor"
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	depends on I2C
 	help
 	  Say Y here to build a driver for Devantech SRF02/SRF08/SRF10