From 41538f2db1eaa8613ffb3cd0c92a57ace6c0a5f2 Mon Sep 17 00:00:00 2001 From: Zhouyang Jia Date: Thu, 14 Jun 2018 19:41:37 +0800 Subject: ALSA: sonicvibes: add error handling for snd_ctl_add When snd_ctl_add fails, the lack of error-handling code may cause unexpected results. This patch adds error-handling code after calling snd_ctl_add. Signed-off-by: Zhouyang Jia Signed-off-by: Takashi Iwai --- sound/pci/sonicvibes.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'sound') diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c index a8abb15e3c3a..7fbdb703bfcd 100644 --- a/sound/pci/sonicvibes.c +++ b/sound/pci/sonicvibes.c @@ -1188,6 +1188,7 @@ SONICVIBES_SINGLE("Joystick Speed", 0, SV_IREG_GAME_PORT, 1, 15, 0); static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic) { struct gameport *gp; + int err; sonic->gameport = gp = gameport_allocate_port(); if (!gp) { @@ -1203,7 +1204,10 @@ static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic) gameport_register_port(gp); - snd_ctl_add(sonic->card, snd_ctl_new1(&snd_sonicvibes_game_control, sonic)); + err = snd_ctl_add(sonic->card, + snd_ctl_new1(&snd_sonicvibes_game_control, sonic)); + if (err < 0) + return err; return 0; } @@ -1515,7 +1519,11 @@ static int snd_sonic_probe(struct pci_dev *pci, return err; } - snd_sonicvibes_create_gameport(sonic); + err = snd_sonicvibes_create_gameport(sonic); + if (err < 0) { + snd_card_free(card); + return err; + } if ((err = snd_card_register(card)) < 0) { snd_card_free(card); -- cgit v1.2.3-59-g8ed1b