tree 4e6a59cdf0c13005d22165932b82acf1213bc937
parent 1e9d1b13efae7e0a2705611d47ae5f07e27015f0
author Julia Lawall <julia@diku.dk> 1261513859 +0100
committer Dan Williams <dan.j.williams@intel.com> 1261521008 -0700

drivers/dma: Correct use after free

Move the kfree after the iounmap that refers to the same structure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,e;
identifier f;
iterator I;
statement S;
@@

*kfree(x);
... when != &x
    when != x = e
    when != I(x,...) S
*x->f
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>