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authorZhouyang Jia <jiazhouyang09@gmail.com>2018-06-14 19:41:37 +0800
committerTakashi Iwai <tiwai@suse.de>2018-06-14 18:00:30 +0200
commit41538f2db1eaa8613ffb3cd0c92a57ace6c0a5f2 (patch)
tree2ae7d6252142022fbf12324d69849a1400df4a11
parentd9d5ed1ad5d8a256c8c3f6b7736d9dad10232637 (diff)
downloadlinux-41538f2db1eaa8613ffb3cd0c92a57ace6c0a5f2.tar.bz2
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 <jiazhouyang09@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/sonicvibes.c12
1 files changed, 10 insertions, 2 deletions
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);