From c48af765e183c9b1787d9506e3c582b3f577379c Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 12 Jan 2023 13:28:51 +0200 Subject: [PATCH] ASoC: Intel: bytcr_wm5102: Drop reference count of ACPI device after use [ 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 Acked-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230112112852.67714-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- 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 45a6805787f5..f8da1bcd010e 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;