[PATCH] fix trident.c lockup on module load 2.6.0-test2

This patch fixes a kernel lockup with 2.6.0-test2 when the trident.c
OSS driver is loaded and the driver attempts to initialize the
card. The problem is that in ali_ac97_get() we lock the card->lock
spinlock, but never release it on the good path, only on the error
path. This patch adds the missing spin_unlock_irqrestore().

This bug snuck in in a 2.4 sync from Alan, and 2.4 appears to suffer
from the same problem.  A patch for that will be send to Marcelo
momentarily.

sound/oss/trident.c

@@ -3017,6 +3017,8 @@ static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg)
 	}
 	
 	data = inl(TRID_REG(card, address));
+
+	spin_unlock_irqrestore(&card->lock, flags);
 	
 	return ((u16) (data >> 16));