From 68425adcc419bfe90776f59e66b8c4cdb6e1b1f3 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 10 Apr 2009 09:43:36 +0800 Subject: ALSA: sound/isa: use memdup_user() Remove open-coded memdup_user(). Signed-off-by: Li Zefan Signed-off-by: Takashi Iwai --- sound/isa/wavefront/wavefront_fx.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'sound/isa/wavefront/wavefront_fx.c') diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c index dfc449a..5e6870b 100644 --- a/sound/isa/wavefront/wavefront_fx.c +++ b/sound/isa/wavefront/wavefront_fx.c @@ -210,15 +210,11 @@ snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file, "> 512 bytes to FX\n"); return -EIO; } - page_data = kmalloc(r.data[2] * sizeof(short), GFP_KERNEL); - if (!page_data) - return -ENOMEM; - if (copy_from_user (page_data, - (unsigned char __user *) r.data[3], - r.data[2] * sizeof(short))) { - kfree(page_data); - return -EFAULT; - } + page_data = memdup_user((unsigned char __user *) + r.data[3], + r.data[2] * sizeof(short)); + if (IS_ERR(page_data)) + return PTR_ERR(page_data); pd = page_data; } -- cgit v1.1