Commit 801c4b5c authored Sep 18, 2012 by Kim, Milo Committed by Jonathan Cameron Sep 22, 2012

iio: inkern: put the IIO device when it fails to allocate memory



 The reference count of the IIO device is increased if the IIO map has
 matched consumer name.
 After then, it tries to allocate the iio_channel which is used by the consumer.
 If it fails to allocate memory, the reference count should be decreased.

 This patch enables restoring the reference count of the IIO device.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

parent 369d0e20

drivers/iio/inkern.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -132,7 +132,7 @@ struct iio_channel iio_channel_get(const char name, const char *channel_name)

		channel = kzalloc(sizeof(*channel), GFP_KERNEL);
		if (channel == NULL)
		return ERR_PTR(-ENOMEM);
		goto error_no_mem;

		channel->indio_dev = c->indio_dev;

		@@ -151,6 +151,9 @@ error_no_chan:
		iio_device_put(c->indio_dev);
		kfree(channel);
		return ERR_PTR(-EINVAL);
		error_no_mem:
		iio_device_put(c->indio_dev);
		return ERR_PTR(-ENOMEM);
		}
		EXPORT_SYMBOL_GPL(iio_channel_get);

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