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author | Julia Lawall <julia@diku.dk> | 2010-05-22 10:26:22 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 14:35:34 -0700 |
commit | be8a058b50a90282d32aa638720195e1c327c569 (patch) | |
tree | 7424cb27031e7fd295810d856b1f265a91beb438 /Documentation/usb | |
parent | 37cd681c022a0a46ebcff025897a57457d3ca8cd (diff) | |
download | linux-be8a058b50a90282d32aa638720195e1c327c569.tar.bz2 |
USB: gadget: 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: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/usb')
0 files changed, 0 insertions, 0 deletions