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| author | Julia Lawall <julia@diku.dk> | 2010-05-21 22:18:34 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-31 00:24:11 -0700 |
| commit | 16dff91804777efbb0ce18b0a7e54c55e86b7beb (patch) | |
| tree | f32f5a6258ca45284c8a12d83ac08e5d892c9e13 /drivers | |
| parent | d7fd1b5747fff3bde92777bcaf705d98ae6f8b6f (diff) | |
| download | op-kernel-dev-16dff91804777efbb0ce18b0a7e54c55e86b7beb.zip op-kernel-dev-16dff91804777efbb0ce18b0a7e54c55e86b7beb.tar.gz | |
net/can: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions
