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 <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
