[PATCH AUTOSEL 5.19 19/48] ASoC: nau8821: Don't unconditionally free interrupt

Sasha Levin sashal at kernel.org
Sun Aug 14 18:19:12 CEST 2022


From: Mark Brown <broonie at kernel.org>

[ Upstream commit 2d86cef353b8f3d20b16f8c5615742fd6938c801 ]

The remove() operation unconditionally frees the interrupt for the device
but we may not actually have an interrupt so there might be nothing to
free. Since the interrupt is requested after all other resources we don't
need the explicit free anyway, unwinding is guaranteed to be safe, so just
delete the remove() function and let devm take care of things.

Reported-by: Zheyu Ma <zheyuma97 at gmail.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
Tested-by: Zheyu Ma <zheyuma97 at gmail.com>
Link: https://lore.kernel.org/r/20220718140405.57233-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 sound/soc/codecs/nau8821.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c
index ce4e7f46bb06..e078d2ffb3f6 100644
--- a/sound/soc/codecs/nau8821.c
+++ b/sound/soc/codecs/nau8821.c
@@ -1665,15 +1665,6 @@ static int nau8821_i2c_probe(struct i2c_client *i2c)
 	return ret;
 }
 
-static int nau8821_i2c_remove(struct i2c_client *i2c_client)
-{
-	struct nau8821 *nau8821 = i2c_get_clientdata(i2c_client);
-
-	devm_free_irq(nau8821->dev, nau8821->irq, nau8821);
-
-	return 0;
-}
-
 static const struct i2c_device_id nau8821_i2c_ids[] = {
 	{ "nau8821", 0 },
 	{ }
@@ -1703,7 +1694,6 @@ static struct i2c_driver nau8821_driver = {
 		.acpi_match_table = ACPI_PTR(nau8821_acpi_match),
 	},
 	.probe_new = nau8821_i2c_probe,
-	.remove = nau8821_i2c_remove,
 	.id_table = nau8821_i2c_ids,
 };
 module_i2c_driver(nau8821_driver);
-- 
2.35.1



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