Fix sound driver timeout types. Again.

sound/pci/ac97/ac97_codec.c

@@ -1870,7 +1870,7 @@ static void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int mod
  */
 static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem)
 {
-	signed long end_time;
+	unsigned long end_time;
 	end_time = jiffies + timeout;
 	do {
 		unsigned short ext_mid;
@@ -1930,7 +1930,7 @@ int snd_ac97_mixer(snd_card_t * card, ac97_t * _ac97, ac97_t ** rac97)
 	int err;
 	ac97_t *ac97;
 	char name[64];
-	signed long end_time;
+	unsigned long end_time;
 	static snd_device_ops_t ops = {
 		.dev_free =	snd_ac97_dev_free,
 	};
@@ -2083,7 +2083,7 @@ int snd_ac97_mixer(snd_card_t * card, ac97_t * _ac97, ac97_t ** rac97)
  */
 static int ac97_modem_reset_wait(ac97_t *ac97, int timeout)
 {
-	signed long end_time;
+	unsigned long end_time;
 	end_time = jiffies + timeout;
 	do {
 		unsigned short ext_mid;

sound/pci/intel8x0.c

@@ -1778,7 +1778,7 @@ static void do_delay(intel8x0_t *chip)
 
 static int snd_intel8x0_ich_chip_init(intel8x0_t *chip)
 {
-	signed long end_time;
+	unsigned long end_time;
 	unsigned int cnt, status, nstatus;
 	
 	/* put logic to right state */