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authorKim, Milo <Milo.Kim@ti.com>2012-09-18 05:55:00 +0100
committerJonathan Cameron <jic23@kernel.org>2012-09-22 10:13:32 +0100
commit801c4b5ca373c4cfe78912616d68e1f7fd84110c (patch)
tree244211834122938571cf145b324d8d80af004a92 /drivers/iio
parent369d0e20138c774e4c0c07ca1572e412207bc3fc (diff)
downloadop-kernel-dev-801c4b5ca373c4cfe78912616d68e1f7fd84110c.zip
op-kernel-dev-801c4b5ca373c4cfe78912616d68e1f7fd84110c.tar.gz
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>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/inkern.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 25b0076..e38f414 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -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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