openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

hwrng: nomadik - add missing clk_put 

Jump to the end of the function for the clk_disable and clk_put rather than
returning directly.

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

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Julia Lawall 2011-06-08 21:00:55 +08:00 committed by Herbert Xu
parent 6ba1a31ef1
commit 2725ae1759
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/char/hw_random/nomadik-rng.c
View File

@ -55,7 +55,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
ret = amba_request_regions(dev, dev->dev.init_name);
if (ret)
return ret;
goto out_clk;
ret = -ENOMEM;
base = ioremap(dev->res.start, resource_size(&dev->res));
if (!base)
@ -70,6 +70,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
iounmap(base);
out_release:
amba_release_regions(dev);
out_clk:
clk_disable(rng_clk);
clk_put(rng_clk);
return ret;