diff options
| author | Dan Carpenter <error27@gmail.com> | 2011-05-26 11:47:35 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-06-03 10:11:17 +0200 |
| commit | 9676001559fce06e37c7dc230ab275f605556176 (patch) | |
| tree | 1efc1b578374b3b14519746bdd78188ba4d0c66a /sound | |
| parent | a01ef051d584c12ede5cd5275b008b2ded57f3d9 (diff) | |
| download | lwn-9676001559fce06e37c7dc230ab275f605556176.tar.gz lwn-9676001559fce06e37c7dc230ab275f605556176.zip | |
ALSA: fm801: add error handling if auto-detect fails
In the original code if auto detect failed and tea575x_tuner == 4
then we copy bogus information to chip->tea.card. I've changed the
autodetect code to cleanup and return -ENODEV on error instead.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/fm801.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c index eacd4901a308..a7ec7030cf87 100644 --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -1234,9 +1234,12 @@ static int __devinit snd_fm801_create(struct snd_card *card, sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 && (tea575x_tuner & TUNER_TYPE_MASK) < 4) { - if (snd_tea575x_init(&chip->tea)) + if (snd_tea575x_init(&chip->tea)) { snd_printk(KERN_ERR "TEA575x radio not found\n"); - } else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) + snd_fm801_free(chip); + return -ENODEV; + } + } else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) { /* autodetect tuner connection */ for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) { chip->tea575x_tuner = tea575x_tuner; @@ -1246,6 +1249,12 @@ static int __devinit snd_fm801_create(struct snd_card *card, break; } } + if (tea575x_tuner == 4) { + snd_printk(KERN_ERR "TEA575x radio not found\n"); + snd_fm801_free(chip); + return -ENODEV; + } + } strlcpy(chip->tea.card, snd_fm801_tea575x_gpios[(tea575x_tuner & TUNER_TYPE_MASK) - 1].name, sizeof(chip->tea.card)); #endif |