ALSA: 6fire: Fix probe of multiple cards

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 <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c
index 4394ae796356..0716ba691398 100644
--- a/sound/usb/6fire/chip.c
+++ b/sound/usb/6fire/chip.c
@@ -101,7 +101,7 @@ static int usb6fire_chip_probe(struct usb_interface *intf,
                         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) {