[PATCH 3.2 013/185] ALSA: 6fire: Fix probe of multiple cards

[Ben Hutchings]

3.2.54-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <ti...@suse.de>

commit 9b389a8a022110b4bc055a19b888283544d9eba6 upstream.

The probe code of snd-usb-6fire driver overrides the devices[] pointer
wrongly without checking whether it's already occupied or not.  This
would screw up the device disconnection later.

Spotted by coverity CID 141423.

Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 sound/usb/6fire/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/usb/6fire/chip.c
+++ b/sound/usb/6fire/chip.c
@@ -102,7 +102,7 @@ static int __devinit usb6fire_chip_probe
                        usb_set_intfdata(intf, chips[i]);
                        mutex_unlock(&register_mutex);
                        return 0;
-               } else if (regidx < 0)
+               } else if (!devices[i] && regidx < 0)
                        regidx = i;
        }
        if (regidx < 0) {

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