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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-01-26 12:25:21 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-01-30 15:37:40 +0000 |
| commit | d81dac3c1c5295c61b15293074ac2bd3254e1875 (patch) | |
| tree | 21f654c5a0723ec04d2db947c299e4f426dcd138 /drivers/iio/inkern.c | |
| parent | 9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b (diff) | |
| download | linux-d81dac3c1c5295c61b15293074ac2bd3254e1875.tar.bz2 | |
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: 2202e1fc5a29 ('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>
Diffstat (limited to 'drivers/iio/inkern.c')
| -rw-r--r-- | drivers/iio/inkern.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index c8bad3cf891d..217e9306aa0f 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -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); } |