From: Christophe JAILLET christophe.jaillet@wanadoo.fr
stable inclusion from stable-5.10.65 commit 9c640a2bb5515832993728150e261b91553e9ee5 bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 7a6a723e98aa45f393e6add18f7309dfffa1b0e2 ]
There is no point in calling 'free_irq()' explicitly for 'WCD9335_IRQ_SLIMBUS' in the remove function.
The irqs are requested in 'wcd9335_setup_irqs()' using a resource managed function (i.e. 'devm_request_threaded_irq()'). 'wcd9335_setup_irqs()' requests all what is defined in the 'wcd9335_irqs' structure. This structure has only one entry for 'WCD9335_IRQ_SLIMBUS'.
So 'devm_request...irq()' + explicit 'free_irq()' would lead to a double free.
Remove the unneeded 'free_irq()' from the remove function.
Fixes: 20aedafdf492 ("ASoC: wcd9335: add support to wcd9335 codec") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Message-Id: 0614d63bc00edd7e81dd367504128f3d84f72efa.1629091028.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- sound/soc/codecs/wcd9335.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c index 4d2b1ec7c03b..0b7aae5cc783 100644 --- a/sound/soc/codecs/wcd9335.c +++ b/sound/soc/codecs/wcd9335.c @@ -4869,7 +4869,6 @@ static void wcd9335_codec_remove(struct snd_soc_component *comp) struct wcd9335_codec *wcd = dev_get_drvdata(comp->dev);
wcd_clsh_ctrl_free(wcd->clsh_ctrl); - free_irq(regmap_irq_get_virq(wcd->irq_data, WCD9335_IRQ_SLIMBUS), wcd); }
static int wcd9335_codec_set_sysclk(struct snd_soc_component *comp,