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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-04-10 09:43:36 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-04-14 12:39:23 +0200 |
| commit | 68425adcc419bfe90776f59e66b8c4cdb6e1b1f3 (patch) | |
| tree | ea68aa46121d17114732442d9730a22292606e46 /sound/isa/sb | |
| parent | ef44a1ec6eeef189998f84e7230e1d3535b01074 (diff) | |
| download | linux-3.10-68425adcc419bfe90776f59e66b8c4cdb6e1b1f3.tar.gz linux-3.10-68425adcc419bfe90776f59e66b8c4cdb6e1b1f3.tar.bz2 linux-3.10-68425adcc419bfe90776f59e66b8c4cdb6e1b1f3.zip | |
ALSA: sound/isa: use memdup_user()
Remove open-coded memdup_user().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa/sb')
| -rw-r--r-- | sound/isa/sb/sb16_csp.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c index 49037d074c7..bdc8dde4e4a 100644 --- a/sound/isa/sb/sb16_csp.c +++ b/sound/isa/sb/sb16_csp.c @@ -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; } |