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| author | Jarod Wilson <jarod@redhat.com> | 2010-07-17 01:29:54 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-02 23:42:56 +0400 |
| commit | 6efb870a115ac223ab578bc76699ba8591250568 (patch) | |
| tree | 769d2b4bad3e3c82e7eee654577fb55ac7a191ae /drivers/media | |
| parent | 5690085e7ba7f3081c6ab6db3a3b543444ad8a21 (diff) | |
| download | linux-6efb870a115ac223ab578bc76699ba8591250568.tar.xz | |
V4L/DVB: IR/lirc: use memdup_user instead of copy_from_user
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/IR/ir-lirc-codec.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/media/IR/ir-lirc-codec.c b/drivers/media/IR/ir-lirc-codec.c index afb1ada36c78..ee1f2d443ab2 100644 --- a/drivers/media/IR/ir-lirc-codec.c +++ b/drivers/media/IR/ir-lirc-codec.c @@ -74,14 +74,9 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char *buf, if (count > LIRCBUF_SIZE || count % 2 == 0) return -EINVAL; - txbuf = kzalloc(sizeof(int) * LIRCBUF_SIZE, GFP_KERNEL); - if (!txbuf) - return -ENOMEM; - - if (copy_from_user(txbuf, buf, n)) { - ret = -EFAULT; - goto out; - } + txbuf = memdup_user(buf, n); + if (IS_ERR(txbuf)) + return PTR_ERR(txbuf); ir_dev = lirc->ir_dev; if (!ir_dev) { |