ASoC: tlv320adc3xxx: Don't strip remove function when driver is builtin
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Sun, 10 Mar 2024 14:38:51 +0000 (15:38 +0100)
committerMark Brown <broonie@kernel.org>
Mon, 11 Mar 2024 13:31:44 +0000 (13:31 +0000)
Using __exit for the remove function results in the remove callback
being discarded with SND_SOC_TLV320ADC3XXX=y. When such a device gets
unbound (e.g. using sysfs or hotplug), the driver is just removed
without the cleanup being performed. This results in resource leaks. Fix
it by compiling in the remove callback unconditionally.

This also fixes a W=1 modpost warning:

WARNING: modpost: sound/soc/codecs/snd-soc-tlv320adc3xxx: section mismatch in reference: adc3xxx_i2c_driver+0x10 (section: .data) -> adc3xxx_i2c_remove (section: .exit.text)

(which only happens with SND_SOC_TLV320ADC3XXX=m).

Fixes: e9a3b57efd28 ("ASoC: codec: tlv320adc3xxx: New codec driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://msgid.link/r/20240310143852.397212-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/tlv320adc3xxx.c

index 420bbf5..e100cc9 100644 (file)
@@ -1429,7 +1429,7 @@ err_unprepare_mclk:
        return ret;
 }
 
-static void __exit adc3xxx_i2c_remove(struct i2c_client *client)
+static void adc3xxx_i2c_remove(struct i2c_client *client)
 {
        struct adc3xxx *adc3xxx = i2c_get_clientdata(client);
 
@@ -1452,7 +1452,7 @@ static struct i2c_driver adc3xxx_i2c_driver = {
                   .of_match_table = tlv320adc3xxx_of_match,
                  },
        .probe = adc3xxx_i2c_probe,
-       .remove = __exit_p(adc3xxx_i2c_remove),
+       .remove = adc3xxx_i2c_remove,
        .id_table = adc3xxx_i2c_id,
 };