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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
parent369d0e20138c774e4c0c07ca1572e412207bc3fc (diff)
downloadlinux-801c4b5ca373c4cfe78912616d68e1f7fd84110c.tar.bz2
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>
-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 25b00761005a..e38f41464fe4 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);