Messages in this thread Patch in this message | | | From | "Kim, Milo" <> | Subject | [PATCH 2/2] iio: inkern: put the IIO device when mem alloc gets failed | Date | Mon, 17 Sep 2012 08:44:47 +0000 |
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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 memory allocation gets failed, 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> --- drivers/iio/inkern.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 13748c0..aff034b 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); -- 1.7.9.5
Best Regards, Milo
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