releases/3.10.21/alsa-6fire-fix-probe-of-multiple-cards.patch

From 9b389a8a022110b4bc055a19b888283544d9eba6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 11:24:23 +0100
Subject: ALSA: 6fire: Fix probe of multiple cards

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

---
 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
@@ -101,7 +101,7 @@ static int usb6fire_chip_probe(struct us
 			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) {