diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2023-04-14 08:07:02 -0700 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-05-13 17:54:57 +0100 |
| commit | 28f73ded19d403697f87473c9b85a27eb8ed9cf2 (patch) | |
| tree | 0bd99469ef19000a5e62e4238a39bda18415a41a /drivers/iio | |
| parent | 265c82ea8b172129cb6d4eff41af856c3aff6168 (diff) | |
| download | linux-28f73ded19d403697f87473c9b85a27eb8ed9cf2.tar.gz linux-28f73ded19d403697f87473c9b85a27eb8ed9cf2.tar.bz2 linux-28f73ded19d403697f87473c9b85a27eb8ed9cf2.zip | |
iio: ad4130: Make sure clock provider gets removed
The ad4130 driver registers a clock provider, but never removes it. This
leaves a stale clock provider behind that references freed clocks when the
device is unbound.
Register a managed action to remove the clock provider when the device is
removed.
Fixes: 62094060cf3a ("iio: adc: ad4130: add AD4130 driver")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20230414150702.518441-1-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ad4130.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad4130.c b/drivers/iio/adc/ad4130.c index 38394341fd6e..5a5dd5e87ffc 100644 --- a/drivers/iio/adc/ad4130.c +++ b/drivers/iio/adc/ad4130.c @@ -1817,6 +1817,11 @@ static const struct clk_ops ad4130_int_clk_ops = { .unprepare = ad4130_int_clk_unprepare, }; +static void ad4130_clk_del_provider(void *of_node) +{ + of_clk_del_provider(of_node); +} + static int ad4130_setup_int_clk(struct ad4130_state *st) { struct device *dev = &st->spi->dev; @@ -1824,6 +1829,7 @@ static int ad4130_setup_int_clk(struct ad4130_state *st) struct clk_init_data init; const char *clk_name; struct clk *clk; + int ret; if (st->int_pin_sel == AD4130_INT_PIN_CLK || st->mclk_sel != AD4130_MCLK_76_8KHZ) @@ -1843,7 +1849,11 @@ static int ad4130_setup_int_clk(struct ad4130_state *st) if (IS_ERR(clk)) return PTR_ERR(clk); - return of_clk_add_provider(of_node, of_clk_src_simple_get, clk); + ret = of_clk_add_provider(of_node, of_clk_src_simple_get, clk); + if (ret) + return ret; + + return devm_add_action_or_reset(dev, ad4130_clk_del_provider, of_node); } static int ad4130_setup(struct iio_dev *indio_dev) |