5 files changed, 7 insertions, 18 deletions

diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
index 82d791be7499..05dabe454658 100644
--- a/sound/ppc/awacs.c
+++ b/sound/ppc/awacs.c
@@ -801,11 +801,10 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
         chip->revision = (in_le32(&chip->awacs->codec_stat) >> 12) & 0xf;
 #ifdef PMAC_AMP_AVAIL
         if (chip->revision == 3 && chip->has_iic && CHECK_CUDA_AMP()) {
-                struct awacs_amp *amp = kmalloc(sizeof(*amp), GFP_KERNEL);
+                struct awacs_amp *amp = kzalloc(sizeof(*amp), GFP_KERNEL);
                 if (! amp)
                         return -ENOMEM;
                 chip->mixer_data = amp;
-                memset(amp, 0, sizeof(*amp));
                 chip->mixer_free = awacs_amp_free;
                 awacs_amp_set_vol(amp, 0, 63, 63, 0); /* mute and zero vol */
                 awacs_amp_set_vol(amp, 1, 63, 63, 0);
diff --git a/sound/ppc/daca.c b/sound/ppc/daca.c
index 46eebf5610e3..57202b0f033e 100644
--- a/sound/ppc/daca.c
+++ b/sound/ppc/daca.c
@@ -258,10 +258,9 @@ int __init snd_pmac_daca_init(struct snd_pmac *chip)
                 request_module("i2c-powermac");
 #endif /* CONFIG_KMOD */        
 
-        mix = kmalloc(sizeof(*mix), GFP_KERNEL);
+        mix = kzalloc(sizeof(*mix), GFP_KERNEL);
         if (! mix)
                 return -ENOMEM;
-        memset(mix, 0, sizeof(*mix));
         chip->mixer_data = mix;
         chip->mixer_free = daca_cleanup;
         mix->amp_on = 1; /* default on */
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index fb05938dcbd9..59482a4cd446 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -64,11 +64,10 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
         if (strncmp(i2c_device_name(adapter), "mac-io", 6))
                 return 0; /* ignored */
 
-        new_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+        new_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
         if (! new_client)
                 return -ENOMEM;
 
-        memset(new_client, 0, sizeof(*new_client));
         new_client->addr = keywest_ctx->addr;
         i2c_set_clientdata(new_client, keywest_ctx);
         new_client->adapter = adapter;
diff --git a/sound/ppc/powermac.c b/sound/ppc/powermac.c
index fa9a44ab487e..2264574fa06b 100644
--- a/sound/ppc/powermac.c
+++ b/sound/ppc/powermac.c
@@ -181,21 +181,14 @@ static int __init alsa_card_pmac_init(void)
         if ((err = platform_driver_register(&snd_pmac_driver)) < 0)
                 return err;
         device = platform_device_register_simple(SND_PMAC_DRIVER, -1, NULL, 0);
-        if (!IS_ERR(device)) {
-                if (platform_get_drvdata(device))
-                        return 0;
-                platform_device_unregister(device);
-                err = -ENODEV;
-        } else
-                err = PTR_ERR(device);
-        platform_driver_unregister(&snd_pmac_driver);
-        return err;
+        return 0;
 
 }
 
 static void __exit alsa_card_pmac_exit(void)
 {
-        platform_device_unregister(device);
+        if (!IS_ERR(device))
+                platform_device_unregister(device);
         platform_driver_unregister(&snd_pmac_driver);
 }
 
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index 692c61177678..84f6b19c07ca 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -1316,10 +1316,9 @@ int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
                 request_module("i2c-powermac");
 #endif /* CONFIG_KMOD */        
 
-        mix = kmalloc(sizeof(*mix), GFP_KERNEL);
+        mix = kzalloc(sizeof(*mix), GFP_KERNEL);
         if (! mix)
                 return -ENOMEM;
-        memset(mix, 0, sizeof(*mix));
         mix->headphone_irq = -1;
 
         chip->mixer_data = mix;