Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix the cmd cache keys for amp verbs
  ALSA: add missing definitions(letters) to HD-Audio.txt
  ALSA: hda - Add quirk mask for Fujitsu Amilo laptops with ALC883
  [ALSA] intel8x0: add one retry to the ac97_clock measurement routine
  [ALSA] intel8x0: fix wrong conditions in ac97_clock measure routine
  ALSA: hda - Avoid call of snd_jack_report at release
  ALSA: add private_data to struct snd_jack
  ALSA: snd-usb-caiaq: rename files to remove redundant information in file pathes
  ALSA: snd-usb-caiaq: clean up header includes
  ALSA: sound/pci: use memdup_user()
  ALSA: sound/usb: use memdup_user()
  ALSA: sound/isa: use memdup_user()
  ALSA: sound/core: use memdup_user()
  [ALSA] intel8x0: do not use zero value from PICB register
  [ALSA] intel8x0: an attempt to make ac97_clock measurement more reliable
  [ALSA] pcm-midlevel: Add more strict buffer position checks based on jiffies
  [ALSA] hda_intel: fix unexpected ring buffer positions
  ASoC: Disable S3C64xx support in Kconfig
  ASoC: magician: remove un-necessary #include of pxa-regs.h and hardware.h

1 files changed, 35 insertions, 58 deletions

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index a151fb01ba82..fc6f98e257df 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -327,21 +327,16 @@ static int snd_pcm_hw_refine_user(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params;
 	int err;
 
-	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(params, _params, sizeof(*params))) {
-		err = -EFAULT;
-		goto out;
-	}
+	params = memdup_user(_params, sizeof(*params));
+	if (IS_ERR(params))
+		return PTR_ERR(params);
+
 	err = snd_pcm_hw_refine(substream, params);
 	if (copy_to_user(_params, params, sizeof(*params))) {
 		if (!err)
 			err = -EFAULT;
 	}
-out:
+
 	kfree(params);
 	return err;
 }
@@ -465,21 +460,16 @@ static int snd_pcm_hw_params_user(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params;
 	int err;
 
-	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(params, _params, sizeof(*params))) {
-		err = -EFAULT;
-		goto out;
-	}
+	params = memdup_user(_params, sizeof(*params));
+	if (IS_ERR(params))
+		return PTR_ERR(params);
+
 	err = snd_pcm_hw_params(substream, params);
 	if (copy_to_user(_params, params, sizeof(*params))) {
 		if (!err)
 			err = -EFAULT;
 	}
-out:
+
 	kfree(params);
 	return err;
 }
@@ -2593,13 +2583,11 @@ static int snd_pcm_playback_ioctl1(struct file *file,
 			return -EFAULT;
 		if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
 			return -EFAULT;
-		bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
-		if (bufs == NULL)
-			return -ENOMEM;
-		if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
-			kfree(bufs);
-			return -EFAULT;
-		}
+
+		bufs = memdup_user(xfern.bufs,
+				   sizeof(void *) * runtime->channels);
+		if (IS_ERR(bufs))
+			return PTR_ERR(bufs);
 		result = snd_pcm_lib_writev(substream, bufs, xfern.frames);
 		kfree(bufs);
 		__put_user(result, &_xfern->result);
@@ -2675,13 +2663,11 @@ static int snd_pcm_capture_ioctl1(struct file *file,
 			return -EFAULT;
 		if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
 			return -EFAULT;
-		bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
-		if (bufs == NULL)
-			return -ENOMEM;
-		if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
-			kfree(bufs);
-			return -EFAULT;
-		}
+
+		bufs = memdup_user(xfern.bufs,
+				   sizeof(void *) * runtime->channels);
+		if (IS_ERR(bufs))
+			return PTR_ERR(bufs);
 		result = snd_pcm_lib_readv(substream, bufs, xfern.frames);
 		kfree(bufs);
 		__put_user(result, &_xfern->result);
@@ -3312,18 +3298,12 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
 	int err;
 
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
-	if (!oparams) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!params)
+		return -ENOMEM;
 
-	if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
-		err = -EFAULT;
+	oparams = memdup_user(_oparams, sizeof(*oparams));
+	if (IS_ERR(oparams)) {
+		err = PTR_ERR(oparams);
 		goto out;
 	}
 	snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3333,9 +3313,10 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
 		if (!err)
 			err = -EFAULT;
 	}
+
+	kfree(oparams);
 out:
 	kfree(params);
-	kfree(oparams);
 	return err;
 }
 
@@ -3347,17 +3328,12 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
 	int err;
 
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
-	if (!oparams) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
-		err = -EFAULT;
+	if (!params)
+		return -ENOMEM;
+
+	oparams = memdup_user(_oparams, sizeof(*oparams));
+	if (IS_ERR(oparams)) {
+		err = PTR_ERR(oparams);
 		goto out;
 	}
 	snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3367,9 +3343,10 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
 		if (!err)
 			err = -EFAULT;
 	}
+
+	kfree(oparams);
 out:
 	kfree(params);
-	kfree(oparams);
 	return err;
 }
 #endif /* CONFIG_SND_SUPPORT_OLD_API */