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Crypto: mv_cesa - Switch to using managed resources

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Switch to resource-managed function devm_kzalloc instead
of kzalloc and remove unneeded kfree

Also, remove kfree in probe function and remove
function, mv_remove as it is now has nothing to do.
The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
<+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
...
?-kfree(e);
...+>
}
@rem depends on prb@
identifier platform.removefn;
expression prb.e;
@@
removefn(...) {
<...
- kfree(e);
...>
}
//</smpl>

Signed-off-by: Nadim Almas <nadim.902@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Nadim almas 2016-11-02 17:28:45 +05:30 committed by Herbert Xu
parent 4d9b3a5b93
commit 650d4a9782
1 changed files with 1 additions and 3 deletions
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4
drivers/crypto/mv_cesa.c
View file

@ -1073,7 +1073,7 @@ static int mv_probe(struct platform_device *pdev)
if (!res)
return -ENXIO;
cp = kzalloc(sizeof(*cp), GFP_KERNEL);
cp = devm_kzalloc(&pdev->dev, sizeof(*cp), GFP_KERNEL);
if (!cp)
return -ENOMEM;
@ -1163,7 +1163,6 @@ static int mv_probe(struct platform_device *pdev)
err_thread:
kthread_stop(cp->queue_th);
err:
kfree(cp);
cpg = NULL;
return ret;
}
@ -1187,7 +1186,6 @@ static int mv_remove(struct platform_device *pdev)
clk_put(cp->clk);
}
kfree(cp);
cpg = NULL;
return 0;
}