[ALSA] bt87x - fix detection of unknown card

Modules: BT87x driver

Signed-off-by: Jaroslav Kysela <perex@suse.cz>

diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index aaaa2e0d45c22aec11ac2325a488d27e392a0f96..c840a4c08e9814c197d30b631b782c420e26869a 100644 (file)
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -810,7 +810,7 @@ static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
        const struct pci_device_id *supported;
 
        supported = pci_match_device(&driver, pci);
-       if (supported)
+       if (supported && supported->driver_data > 0)
                return supported->driver_data;
 
        for (i = 0; i < ARRAY_SIZE(blacklist); ++i)