diff options
author | Julia Lawall <julia@diku.dk> | 2010-08-10 18:01:27 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 08:59:02 -0700 |
commit | 3094141c6532a4f748425c21c091001f218da8ae (patch) | |
tree | 20428f86de4fb7d6f8a57a4e9c35a6f2f2c02d37 /kernel/trace/trace_mmiotrace.c | |
parent | a737b88df8d0b4476ae53daaa6db137df0541203 (diff) |
drivers/scsi: 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>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: Boaz Harrosh <bharrosh@panasas.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/trace/trace_mmiotrace.c')
0 files changed, 0 insertions, 0 deletions