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| author | Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> | 2024-12-04 12:13:42 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-12-08 17:49:09 +0100 |
| commit | 64f43895b4457532a3cc524ab250b7a30739a1b1 (patch) | |
| tree | 85faf3541e6e25ff2862ee1b86e5395748a7557f /drivers/iio | |
| parent | iio: adc: ad9467: Fix the "don't allow reading vref if not available" case (diff) | |
| download | linux-64f43895b4457532a3cc524ab250b7a30739a1b1.tar.xz linux-64f43895b4457532a3cc524ab250b7a30739a1b1.zip | |
iio: inkern: call iio_device_put() only on mapped devices
In the error path of iio_channel_get_all(), iio_device_put() is called
on all IIO devices, which can cause a refcount imbalance. Fix this error
by calling iio_device_put() only on IIO devices whose refcounts were
previously incremented by iio_device_get().
Fixes: 314be14bb893 ("iio: Rename _st_ functions to loose the bit that meant the staging version.")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Link: https://patch.msgid.link/20241204111342.1246706-1-joe@pf.is.s.u-tokyo.ac.jp
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/inkern.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 136b225b6bc8..9050a59129e6 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -500,7 +500,7 @@ struct iio_channel *iio_channel_get_all(struct device *dev) return_ptr(chans); error_free_chans: - for (i = 0; i < nummaps; i++) + for (i = 0; i < mapind; i++) iio_device_put(chans[i].indio_dev); return ERR_PTR(ret); } |