max98090.c doesn't free the threaded interrupt it requests. This causes an oops when doing "cat /proc/interrupts" after snd-soc-max98090.ko is unloaded.

Fix this by requesting the interrupt by using devm_request_threaded_irq().

Signed-off-by: Jarkko Nikula jarkko.nikula@linux.intel.com Cc: Stable stable@vger.kernel.org # 3.10+ --- This issue has been in max98090.c since v3.8 commit 685e42154dcf ("ASoC: Replace max98090 Device Driver"). However this patch applies only after v3.10 which has 3d15aacbb802 ("ASoC: max98090: request IRQF_ONESHOT interrupt"). I'm not sure is there need to go before that since first upstream max98090 user was introduced in a v3.14 commit 7637af2e17f1 ("ASoC: tegra: add tegra+MAX98090 machine driver"). However I'm aware there is an out-of-tree 3.10 user. --- sound/soc/codecs/max98090.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index f5fccc7a8e89..d97f1ce7ff7d 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -2284,7 +2284,7 @@ static int max98090_probe(struct snd_soc_codec *codec) /* Register for interrupts */ dev_dbg(codec->dev, "irq = %d\n", max98090->irq);

- ret = request_threaded_irq(max98090->irq, NULL, + ret = devm_request_threaded_irq(codec->dev, max98090->irq, NULL, max98090_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "max98090_interrupt", codec); if (ret < 0) {