diff options
| author | Julia Lawall <julia@diku.dk> | 2010-07-20 22:08:59 -0400 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-08-07 12:52:31 -0400 |
| commit | ad96a7a7ea950d5bc9755f2f568be185c7070f1e (patch) | |
| tree | ec2d2c8e2d48c241e05d2acf6506a7105d3ed17c /fs/ioprio.c | |
| parent | 6a32a8aed509e71137043d464db4a7fcd88c903e (diff) | |
drivers/block: use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region. Some checkpatch cleanups in nearby code.
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>
Cc: Chirag Kantharia <chirag.kantharia@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/ioprio.c')
0 files changed, 0 insertions, 0 deletions