Commit d81dac3c authored Jan 26, 2016 by Dan Carpenter Committed by Jonathan Cameron Jan 30, 2016

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: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

parent 9d0be85d

drivers/iio/inkern.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get);

		void iio_channel_release(struct iio_channel *channel)
		{
		if (!channel)
		return;
		iio_device_put(channel->indio_dev);
		kfree(channel);
		}