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ALSA: sound/isa: use memdup_user()

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Remove open-coded memdup_user().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Li Zefan
2009-04-10 09:43:36 +08:00
committed by Takashi Iwai
parent ef44a1ec6e
commit 68425adcc4
3 changed files with 20 additions and 24 deletions
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19
sound/isa/sb/sb16_csp.c
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@@ -684,15 +684,16 @@ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int
static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
{
int err = -ENOMEM;
unsigned char *kbuf = kmalloc(size, GFP_KERNEL);
if (kbuf) {
if (copy_from_user(kbuf, buf, size))
err = -EFAULT;
else
err = snd_sb_csp_load(p, kbuf, size, load_flags);
kfree(kbuf);
}
int err;
unsigned char *kbuf;
kbuf = memdup_user(buf, size);
if (IS_ERR(kbuf))
return PTR_ERR(kbuf);
err = snd_sb_csp_load(p, kbuf, size, load_flags);
kfree(kbuf);
return err;
}