3 files changed, 27 insertions, 13 deletions

diff --git a/sound/ppc/beep.c b/sound/ppc/beep.c
index 5fec1e58f310..5f38f670102c 100644
--- a/sound/ppc/beep.c
+++ b/sound/ppc/beep.c
@@ -215,15 +215,18 @@ int __init snd_pmac_attach_beep(struct snd_pmac *chip)
 {
 	struct pmac_beep *beep;
 	struct input_dev *input_dev;
+	struct snd_kcontrol *beep_ctl;
 	void *dmabuf;
 	int err = -ENOMEM;
 
 	beep = kzalloc(sizeof(*beep), GFP_KERNEL);
+	if (! beep)
+		return -ENOMEM;
 	dmabuf = dma_alloc_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4,
 				    &beep->addr, GFP_KERNEL);
 	input_dev = input_allocate_device();
-	if (!beep || !dmabuf || !input_dev)
-		goto fail;
+	if (! dmabuf || ! input_dev)
+		goto fail1;
 
 	/* FIXME: set more better values */
 	input_dev->name = "PowerMac Beep";
@@ -244,17 +247,24 @@ int __init snd_pmac_attach_beep(struct snd_pmac *chip)
 	beep->volume = BEEP_VOLUME;
 	beep->running = 0;
 
-	err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_pmac_beep_mixer, chip));
+	beep_ctl = snd_ctl_new1(&snd_pmac_beep_mixer, chip);
+	err = snd_ctl_add(chip->card, beep_ctl);
 	if (err < 0)
-		goto fail;
+		goto fail1;
+ 
+ 	chip->beep = beep;
 
-	chip->beep = beep;
-	input_register_device(beep->dev);
-
-	return 0;
-
- fail:	input_free_device(input_dev);
-	kfree(dmabuf);
+	err = input_register_device(beep->dev);
+	if (err)
+		goto fail2;
+ 
+ 	return 0;
+ 
+ fail2:	snd_ctl_remove(chip->card, beep_ctl);
+ fail1:	input_free_device(input_dev);
+	if (dmabuf)
+		dma_free_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4,
+				  dmabuf, beep->addr);
 	kfree(beep);
 	return err;
 }
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 59482a4cd446..272ae38e9b18 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -117,6 +117,9 @@ int __init snd_pmac_tumbler_post_init(void)
 {
 	int err;
 	
+	if (!keywest_ctx || !keywest_ctx->client)
+		return -ENXIO;
+
 	if ((err = keywest_ctx->init_client(keywest_ctx)) < 0) {
 		snd_printk(KERN_ERR "tumbler: %i :cannot initialize the MCS\n", err);
 		return err;
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index 6ae2d5b9aa4a..cdff53e4a17e 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -190,7 +190,7 @@ static int check_audio_gpio(struct pmac_gpio *gp)
 
 	ret = do_gpio_read(gp);
 
-	return (ret & 0xd) == (gp->active_val & 0xd);
+	return (ret & 0x1) == (gp->active_val & 0x1);
 }
 
 static int read_audio_gpio(struct pmac_gpio *gp)
@@ -198,7 +198,8 @@ static int read_audio_gpio(struct pmac_gpio *gp)
 	int ret;
 	if (! gp->addr)
 		return 0;
-	ret = ((do_gpio_read(gp) & 0x02) !=0);
+	ret = do_gpio_read(gp);
+	ret = (ret & 0x02) !=0;
 	return ret == gp->active_state;
 }