Commit 801c4b5c authored by Kim, Milo's avatar Kim, Milo Committed by Jonathan Cameron

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: default avatarMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 369d0e20
...@@ -132,7 +132,7 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name) ...@@ -132,7 +132,7 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
channel = kzalloc(sizeof(*channel), GFP_KERNEL); channel = kzalloc(sizeof(*channel), GFP_KERNEL);
if (channel == NULL) if (channel == NULL)
return ERR_PTR(-ENOMEM); goto error_no_mem;
channel->indio_dev = c->indio_dev; channel->indio_dev = c->indio_dev;
...@@ -151,6 +151,9 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name) ...@@ -151,6 +151,9 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
iio_device_put(c->indio_dev); iio_device_put(c->indio_dev);
kfree(channel); kfree(channel);
return ERR_PTR(-EINVAL); return ERR_PTR(-EINVAL);
error_no_mem:
iio_device_put(c->indio_dev);
return ERR_PTR(-ENOMEM);
} }
EXPORT_SYMBOL_GPL(iio_channel_get); EXPORT_SYMBOL_GPL(iio_channel_get);
......
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