From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit c8aa49abdeda2ab587aadb083e670f6aa0236f93 ]
Theoretically the device might gone if its reference count drops to 0. This might be the case when we try to find the first physical node of the ACPI device. We need to keep reference to it until we get a result of the above mentioned call. Refactor the code to drop the reference count at the correct place.
While at it, move to acpi_dev_put() as symmetrical call to the acpi_dev_get_first_match_dev().
Fixes: 9a87fc1e0619 ("ASoC: Intel: bytcr_wm5102: Add machine driver for BYT/WM5102") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20230112112852.67714-5-andriy.shevchenko@linux.int... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/intel/boards/bytcr_wm5102.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c index bb669d58eb8b..9a4126f19d5f 100644 --- a/sound/soc/intel/boards/bytcr_wm5102.c +++ b/sound/soc/intel/boards/bytcr_wm5102.c @@ -411,9 +411,9 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev) return -ENOENT; } snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev)); - put_device(&adev->dev);
codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name); + acpi_dev_put(adev); if (!codec_dev) return -EPROBE_DEFER;