From d8c1fa4af0f311363d9f9cf1014b11d31a99ff10 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 22 May 2010 10:22:00 +0200 Subject: [PATCH] ieee1394: video1394: Use memdup_user ...when user data is immediately copied into the allocated region. Signed-off-by: Julia Lawall Signed-off-by: Stefan Richter (changelog) --- drivers/ieee1394/video1394.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index a42bd6893bcf..a77483befcda 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -1045,14 +1045,9 @@ static long video1394_ioctl(struct file *file, if (get_user(qv, &p->packet_sizes)) return -EFAULT; - psizes = kmalloc(buf_size, GFP_KERNEL); - if (!psizes) - return -ENOMEM; - - if (copy_from_user(psizes, qv, buf_size)) { - kfree(psizes); - return -EFAULT; - } + psizes = memdup_user(qv, buf_size); + if (IS_ERR(psizes)) + return PTR_ERR(psizes); } spin_lock_irqsave(&d->lock,flags); -- 2.20.1