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authorJulia Lawall <Julia.Lawall@lip6.fr>2012-08-04 20:50:46 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2012-08-20 12:28:13 +0400
commit4dbb845ddedff87fc1289ad0e2d780a4a7918356 (patch)
tree2019b90c33a38259f93c4ada3167067ab026dd36
parent33b58b01ac2b7aadbd5143c74b029aee0ce9ac33 (diff)
downloadlinux-4dbb845ddedff87fc1289ad0e2d780a4a7918356.tar.xz
drivers/char/hw_random/octeon-rng.c: drop frees of devm allocated data
devm_kfree and devm_iounmap should not have to be explicitly used. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,d; @@ x = devm_kzalloc(...) ... ?-devm_kfree(d,x); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/char/hw_random/octeon-rng.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/char/hw_random/octeon-rng.c b/drivers/char/hw_random/octeon-rng.c
index 0943edc782a1..5c34c092af71 100644
--- a/drivers/char/hw_random/octeon-rng.c
+++ b/drivers/char/hw_random/octeon-rng.c
@@ -75,42 +75,35 @@ static int __devinit octeon_rng_probe(struct platform_device *pdev)
res_ports = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res_ports)
- goto err_ports;
+ return -ENOENT;
res_result = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res_result)
- goto err_ports;
+ return -ENOENT;
rng->control_status = devm_ioremap_nocache(&pdev->dev,
res_ports->start,
sizeof(u64));
if (!rng->control_status)
- goto err_ports;
+ return -ENOENT;
rng->result = devm_ioremap_nocache(&pdev->dev,
res_result->start,
sizeof(u64));
if (!rng->result)
- goto err_r;
+ return -ENOENT;
rng->ops = ops;
dev_set_drvdata(&pdev->dev, &rng->ops);
ret = hwrng_register(&rng->ops);
if (ret)
- goto err;
+ return -ENOENT;
dev_info(&pdev->dev, "Octeon Random Number Generator\n");
return 0;
-err:
- devm_iounmap(&pdev->dev, rng->control_status);
-err_r:
- devm_iounmap(&pdev->dev, rng->result);
-err_ports:
- devm_kfree(&pdev->dev, rng);
- return -ENOENT;
}
static int __exit octeon_rng_remove(struct platform_device *pdev)