Commit d81dac3c authored by Dan Carpenter's avatar Dan Carpenter Committed by Jonathan Cameron

iio: inkern: fix a NULL dereference on error

In twl4030_bci_probe() there are some failure paths where we call
iio_channel_release() with a NULL pointer.  (Apparently, that driver can
opperate without a valid channel pointer).  Let's fix it by adding a
NULL check in iio_channel_release().

Fixes: 2202e1fc ('drivers: power: twl4030_charger: fix link problems when building as module')
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 9d0be85d
...@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get); ...@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get);
void iio_channel_release(struct iio_channel *channel) void iio_channel_release(struct iio_channel *channel)
{ {
if (!channel)
return;
iio_device_put(channel->indio_dev); iio_device_put(channel->indio_dev);
kfree(channel); kfree(channel);
} }
......
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