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[v2,4/5] ASoC: Intel: bytcr_wm5102: Drop reference count of ACPI device after use

Message ID 20230112112852.67714-5-andriy.shevchenko@linux.intel.com (mailing list archive)
State Accepted
Commit c8aa49abdeda2ab587aadb083e670f6aa0236f93
Headers show
Series ASoC: Intel: Balance ACPI device refcount | expand

Commit Message

Andy Shevchenko Jan. 12, 2023, 11:28 a.m. UTC
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>
---
 sound/soc/intel/boards/bytcr_wm5102.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c
index 1669eb3bd80f..c0706537f673 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;