From: Yang Yingliang yangyingliang@huawei.com
[ Upstream commit 4881bda5ea05c8c240fc8afeaa928e2bc43f61fa ]
If device_register() fails in snd_ac97_dev_register(), it should call put_device() to give up reference, or the name allocated in dev_set_name() is leaked.
Fixes: 0ca06a00e206 ("[ALSA] AC97 bus interface for ad-hoc drivers") Signed-off-by: Yang Yingliang yangyingliang@huawei.com Link: https://lore.kernel.org/r/20221019093025.1179475-1-yangyingliang@huawei.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/pci/ac97/ac97_codec.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 963731cf0d8c..cd66632bf1c3 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -1946,6 +1946,7 @@ static int snd_ac97_dev_register(struct snd_device *device) snd_ac97_get_short_name(ac97)); if ((err = device_register(&ac97->dev)) < 0) { ac97_err(ac97, "Can't register ac97 bus\n"); + put_device(&ac97->dev); ac97->dev.bus = NULL; return err; }