hwrng: omap - Convert release_resource to release_region/release_mem_region
commitc652759b6a27be04ef5d747d81e8c36cde7f55d1
authorJulia Lawall <julia@diku.dk>
Wed, 16 Feb 2011 02:05:54 +0000 (16 13:05 +1100)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 16 Feb 2011 02:05:54 +0000 (16 13:05 +1100)
tree646ef54e6d9970a91a855bc2883359711c71093b
parentfc9044e2db8c13746cd886d6276028b27ed5c78e
hwrng: omap - Convert release_resource to release_region/release_mem_region

Request_region should be used with release_region, not release_resource.

The local variable mem, storing the result of request_mem_region, is
dropped and instead the pointer res is stored in the drvdata field of the
platform device.  This information is retrieved in omap_rng_remove to
release the region.  The drvdata field is not used elsewhere.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,E;
@@
(
*x = request_region(...)
|
*x = request_mem_region(...)
)
... when != release_region(x)
    when != x = E
* release_resource(x);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/char/hw_random/omap-rng.c